MASTER TESTING LIST - 1992
                          December 1, 1992
              OFFICE OF POLLUTION PREVENTION AND TOXICS
        OFFICE OF PREVENTION,  PESTICIDES AND TOXIC SUBSTANCES .'
                U.S.  ENVIRONMENTAL PROTECTION AGENCY
          	L__WASHING.T.ON	D...C-—2,04.60,.
Master Testing List  [CCD]    
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                   MASTER TESTING LIST - 1992
                          Table of Contents
                                                            PAGE




 INTRODUCTION                                                  1

  <     • • '


 ADDITIONS  TO  THE MTL                                         2



 DELETIONS  FROM THE  MTL                                        5



 FORMAT CHANGES TO THE MTL                                     7



 PARTICIPATING IN THE CHEMICAL TESTING PROGRAM                11



 APPENDIX I (EXISTING CHEMICALS PROGRAM - AN OVERVIEW)        12
               f  •
i

"APPENDIX n  (PUBLIC COMMENTS/ISSUES)                         19



 MASTER TESTING LIST                                         21



           INDEX OF  CHEMICALS                                 21



           INDEX OF  SOURCES                                   30



           CATEGORIES                                        31



           CHEMICALS                                         33

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                  MASTER TESTING LIST - 1992


                           Introduction

     The Master Testing List (MTL) is an important component of
the Existing Chemicals Program (ECP) in EPA's Office of Pollution
Prevention and Toxics.  The ECP is responsible for assessing and
managing health and environmental risks that may be posed by
"existing" chemicals.  For more information about the ECP refer
to Appendix I (EPA's Existing Chemicals Program - An Overview.)

     EPA has been using the MTL since 1990 to set fits chemical
testing agenda.   Section 4 of the Toxic Substances Control Act
(TSCA) gives EPA the authority to require chemicals manufacturers
and processors to test chemicals.  Under Section 4,  EPA has the
authority to require testing after finding that (l).a chemical
substance may present an unreasonable risk of injury to human
health or the environment, or the chemical is produced in
substantial quantities which could result in significant or
substantial human or environmental exposure, and <(2) available
data to evaluate the chemical are inadequate, and (3).testing is.
needed to develop the necessary data.  EPA's.Chemical Testing
Program also continues to work with industry to develop test data
by way of consent orders and voluntary testing agreements.

     The purposes of the MTL are to (l) identify; chemical testing
needs of the Federal Government (including EPA) and international
programs of interest to the U.S., (2) focus-limited EPA resources
on the highest priority chemical testing needs, (3)  identify and
publicize EPA's testing priorities for industrial chemicals, (4)
obtain broad public comment on EPA's Chemical Testing Program and
its priorities,  and  (5) encourage initiatives by industry to
provide EPA with the priority data needs identified on the MTL.

     Since 1990, EPA has  (1) added 222 specific chemicals and 9
categories to the MTL, (2) deleted 45 chemicals from the MTL,  (3)
proposed testing for 113 chemicals via proposed rulemaking under
TSCA Section 4;  (4) required testing for 6 specific chemicals and
1 category (carpet/carpet products)  via final TSCA Section 4 test
rules, negotiated consent orders or voluntary testing agreements,
and (5) made risk assessment/management decisions on 41 chemicals
based on final TSCA Section 4 test results received.  Further,
159 chemicals listed on the MTL are now being tested under the
Screening Information Data Set (SIDS) program, an international
voluntary testing program developed under the aegis of the
Organization for Economic Cooperation and Development (OECD).
Members of the U.S. chemical industry have agreed to test 39 of
these chemical substances while other OECD member countries are
testing the remainder.  This effort addresses the testing needs
for international high production volume chemicals.

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     The .MTL now contains over 320 specific chemicals and 9
categories and presents EPA's Chemical Testing Program priorities
for 1992-1994.
 I.  ADDITIONS TO THE MTL


 A. Specific Chemical Substances

     The 222 chemicals added to the MTL are as follows:

  o  106 chemicals from the OECD's SIDS testing program;

  o  14 chemicals designated by the Interagency Testing  Committee
     (ITC) in its 27th and 28th Reports;

  o  66 chemicals from the "Glycidol and Glycidol Derivatives"
     category designated by the ITC in its 3rd Report and which
     were the subject of a proposed TSCA Section 4 test  rule
     (56 FR 57144; November 7,  1991);

  o  12 chemicals from the "Aryl Phosphates" category designated
     by the ITC in its 2nd Report and the subject of a proposed
     TSCA Section 4 test rule (57 FR 2138; January 7, 1992);

  o  12 chemicals from the proposed TSCA Section 4 Multi-Chemical
     Test Rule for Developmental and Reproductive Toxicity
     (56 FR 9092; March 4, 1991),

  o  10 chemicals from the proposed TSCA Section 4 Multi-Chemical
     Test Rule for Neurotoxicological Effects (56 FR 9105;
     March 4, 1991);

  o  Refractory Ceramic Fibers (RCF) monitoring to obtain
     exposure data on RCF levels in industrial environments
     resulting from RCF manufacture, processing and end-use.

  o  Formaldehyde emissions characterization in new conventional
     and manufactured housing that contain formaldehyde-emitting
     pressed wood building materials and products.  This effort
     will also involve characterization of the rate at which
     formaldehyde levels decrease in these indoor environments.


 B. Categories

     The following 9 categories have been targeted by the Agency
for testing action.  Work is currently underway to identify the
specific chemical substances in each category and the type(s) of
testing that should be pursued.

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Persistent Bioaccumulators

Many chemicals that combine persistence and bioaccumulation
have been found to present significant environmental
problems.   Emerging concerns in EPA, especially in the
Office of Water, focus on sediments contaminated with
chemicals having these characteristics.  OPPT plans to
require development of environmental fate and ecotoxicity
test data on these chemicals to support a more comprehensive
risk assessment.  OPPT is in the process of identifying the
set of. .chemicals that will be handled under this effort.

New Chemicals Program Categories of Concern


EPA's New Chemicals Program has established 40 chemical
categories whereby TSCA section 5(e) risk determinations
have been made based upon health or environmental concerns
identified through structure-activity relationships (SAR).
These categories were established to simplify the TSCA
Section 5 regulatory process and represent part of a general
effort by EPA to promote the development of safer chemicals.
As part of this activity, EPA will work with companies to
identify and obtain the test data needed to better define
the limits of each category and to improve the understanding
of risks (hazard and exposure) that may be presented by TSCA
section 5 "Pre-Manufacture Notification" (PMN) substances
within these categories.

EPCRA Section 313 ("TRI Screening")

The Toxics Release Inventory (TRI) was established under
section 313 of the "Emergency Planning and Community Right-
to-Know Act" (EPCRA).  Under this effort, an as yet
undefined subset of TRI chemicals that are produced and
released in high volumes will be evaluated and screening
level testing developed using the OECD SIDS"model.  Current
efforts focus on a possible voluntary program organized by
the Chemical Manufacturers Association fCMA) .and possibly
other trade associations to provide the needed information
and testing.


CAAA Section 112 "Air Toxics"

Data are needed by EPA's Office of Air and Radiation (OAR)
to determine the "residual risk" posed by the 189 chemicals
listed under section 112 of the Clean Air Act Amendments of
1990.   The 1992 MTL includes this category of chemicals,
although only a subset will have testing proposed for them
over the next several years.

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SARA Section 104 "Priority Data Needs"

Section 104 of the Superfund Amendments and Reauthorization
Act (SARA) requires EPA and the Agency for Toxic Substances
and Disease Registry (ATSDR) to list chemicals frequently
identified in Superfund sites.  ATSDR is charged with the
preparation of "Toxicological Profiles" for these chemicals,
identifying data gaps and research needs, and developing a
testing/research program.  When and where appropriate, TSCA
authorities are to be used to obtain the necessary data.  To
date.,  250 chemicals, have been listed under section .104 of
SARA.   Toxicological Profiles have been completed on 110 out
of the 250 chemicals listed in SARA section 104 and cover a
total of 195 individual chemicals.  The reason for the
apparent discrepancy is that a single chemical substance may
be listed but the Toxicological Profile covers several
chemical substances (e.g., the Toxicological Profile for
lead covers lead as well as several lead compounds).  ATSDR
has developed priority data needs for a subset of the 250
chemicals.  The industrial chemicals that are included in
this subset will be proposed for testing by EPA's Chemical
Testing Program over the next few years.


Respirable Fibers

Man-made and naturally-occurring fibers with diameters less
than 3.5 micrometers that can enter the small airways of the
lower respiratory tract and survive in biological systems
for long periods of time can present significant health
concerns.  EPA is assessing the potential risks associated
with the production and use of synthetic and naturally-
occurring respirable fibers and products made from such
fibers.  The testing likely to be proposed by EPA will focus
on health effects via inhalation and better characterization
of exposure.


Indoor Air Source Characterization -
Carpet/Carpet Products


An agreement has been reached to generate the test data
needed for characterization of Total Volatile Organic
Compound (TVOC) emissions from carpets and carpet-related
products. The emissions testing program was developed via
EPA's Carpet Policy Dialogue and testing was initiated in
1991.   This effort involves testing to determine the TVOC
emissions from carpet, carpet cushion, and carpet adhesives.
(See 56 FR 67317; December 30, 1991)

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     Indoor Air Source Characterization -
     Interior Architectural Coatings

     OPPT and EPA's Office of Air and Radiation are coordinating
     efforts to characterize specific chemical emissions and
     total emissions from indoor air sources such as paints,
     varnishes and other coatings.

     Polychlorinated Dioxins/Furans in Wood Pulp/Paper Mill Sludge

     Polychlorinated dioxins and furans (D/F)  are produced when
     wood pulp is bleached with chlorine or chlorine-derivative
     compounds.   The sludge that results from the wastewater
     treatment process in pulp and paper mills has been found to
     be contaminated with D/F.  The Agency is concerned about the
     possible adverse human health and environmental risks posed
     by the disposal of this sludge through land application and
     has determined that additional testing and monitoring data
     to evaluate such risks are needed.  The testing program
     could include determination of D/F concentrations in pulp
     and paper mill sludge and an evaluation of the environmental
     fate and ecological effects of D/F in this type of sludge.


 C.  NOTE

     Also see the discussion in Part III.A.3.  concerning changes
in the definitions of how chemicals will be removed from the MTL.
These changes have resulted over 20 chemical substances that
should have appeared, but did not appear,  in the 1990 MTL and are
now included in the MTL for 1992.


H. DELETIONS FROM THE MTL

     A total of 45 chemical substances have been deleted from the
MTL for the reasons set forth below.

     The Interagency Testing Committee (ITC) has withdrawn the
quaternary ammonium compounds (designated for testing in the
ITC's 22nd Report) and plans to reevaluate the testing need(s)
and method(s)  for these substances.  Therefore, the following 4
quaternary ammonium compounds have been removed from the MTL:

       Chemical Name                        CAS Registry Number

  Imidazolium Quaternary Ammonium Compound      68142-86-1
  Ethoxylated Quaternary Ammonium Compound      68410-69-5
  Ethoxylated Quaternary Ammonium Compound      68413-04-7
  Imidazolium Quaternary Ammonium Compound      72623-82-6

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     Due-to the fact that the Agency has received,  reviewed and
accepted the results of all tests required under TSCA Section 4,
the following 41 chemicals have been deleted from the MTL:
       Chemical Name
CAS Recristrv Number
  Propylene oxide                                  75-56-9
  Isophorone                                       78-59-1
  1,2-Dichloropropane                              78-87-5
  Methyl ethyl ketone *                            78-93-3
  Biphenyl                                         92-52-4
  o-Cresol *                                       95-48-7
  Cumene                                           98-82-8
  p-Cresol                                        106-44-5
  1,4-Dichlorobenzene                             106-46-7
  Methyl isobutyl ketone *,#                      108-10-1
  m-Cresol                                        108-39-4
  Cyclohexanone *                                 108-94-1
  Diethylenetriamine *                            111-40-0
  Diethylene glycol butyl ether                   112-34-5
  Triethylene glycol monomethyl ether *           112-35-6
  Oleylamine *                                    112-90-3
  Tetrafluoroethene                               116-14-3
  Hexafluoropropene *                             116-15-4
  2,4-Dinitrotoluene *                            121-14-2
  2-Phenoxyethanol                                122-99-6
  Hydroquinone *                                  123-31-9
  Diethyleneglycol butyl ether acetate            124-17-4
  2-Mercaptobenzothiazole *                       149-30-4
  2-Ethylhexanoic acid *                          149-57-5
  2,6-Dinitrotoluene                              606-20-2
  1,3-Dioxolane                                   646-06-0
  Antimony Sulfide                               1345-04-6
  Disperse Blue 79                               3618-72-2
  2-Phenoxyethanol acetate                       6192-44-5
  Antimony                                       7440-36-0
  Diisodecylphenyl phosphite                    25550-98-5
  C-9 Aromatic Mixture                             NONE
  Chlorinated Paraffins (9 materials of various    NONE
      levels of chlorination and chain lengths)
  * These chemical substances are also under OECD's SIDS program
    listed separately.

  # Methyl isobutyl ketone is also on the proposed TSCA Section 4
    neurotoxicity end-point rule listed separately.

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   . FORMAT CHANGES IN THE MTL FOR 1992


  A. Comments Submitted by Interested Parties

     EPA bases its testing priorities on broad input from all
those who have a stake in EPA's Existing Chemicals Program,
including other offices  at EPA, other Federal agencies, the
Organization for Economic Cooperation and Development  (OECD),
environmental groups, public interest groups, unions, chemical
companies, and private citizens.  Availability of the .199,1 .MTL
and the date for a public meeting were announced in the Federal
Register  (56 FR 42055, August 26, 1991).  EPA received written
comments, and these and  other issues were discussed at the public
meeting.  In response to public comments, the MTL has been
restructured; these structural changes are summarized below.
Other issues raised via  the public comment process can be found
in Appendix II.

  1)  Status in the Testing Process

     A status code now indicates a chemical's progress through
the four stages of the testing process.   Status code  (A) is
assigned to chemicals when they are added to the MTL;  (S) is
assigned to chemicals for which EPA is starting development of a
proposed test rule or negotiation of a consent agreement;  (F) is
assigned to chemicals for which EPA is developing a final test
rule; and (T) is assigned to chemicals that are under test via a
voluntary agreement, consent order, or final test rule.  The year
in which a chemical is expected to complete its current stage and
move to the next stage of the process is also shown on the list.

  2)  Testing Endpoint Indicators

     Testing needs have  now been organized into three general
categories of endpoints: health effects  (Health), environmental
effects  (Environ), and/or chemical fate  (Fate).  Additional
information on specific  testing needs and codes is contained in
Table 2 on page 10.

  3)  Chemicals Removed Upon Receipt of All Test Data

     The 1991 version of the MTL indicated that EPA would remove
chemicals after a final  rule is published, but would continue to
list voluntary testing cases until the data were received.  EPA
agrees with a number of  comments about the inequity of this
.approach, and will leave chemicals on the MTL until all required
tests are completed and  final reports are received and accepted
as adequate by EPA.  Further, EPA will remove chemicals from the
MTL if the testing priority is significantly reduced, as was the

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case with-the quaternary ammonium compounds discussed previously.
As the result of this procedural change,  more than 20 chemicals
which should have appeared,  but did not appear,  on the 1990  MTL
are now included in the 1992 MTL.


 B)  FORMAT, HEADINGS AND CODES USED IN THE MTL

     The chemicals listed on the 1992 MTL are ordered by  the
source of the testing need.   In addition,  the MTL includes an
index ordered by Chemical Abstract Service (CAS)  Registry Number.
A description of the MTL columns as they are-ordered from left  to
right follows.


CAS No.:   This  unique identifier of up to 9  digits  is assigned
to chemicals by the Chemical Abstract Service (CAS).   CAS numbers
are not available for several chemicals (e.g.,  commercial hexane)
and all categories on the MTL.  Chemicals lacking CAS numbers are
listed at the beginning of the CAS-ordered index of MTL entries.


Chemical Name:   The common  chemical name  used by  EPA.


Source:  The chemical substances and categories  listed on the MTL
have been recommended for testing by sources from within  EPA,
outside agencies, and the international toxics community. For
several chemical substances, several sources were responsible for
the testing recommendation.   All sources are listed separately  in
the CAS-ordered index to the MTL and include the following:

     CPSC - U.S. Consumer Product Safety Commission

     FTC  -  Interagency Testing Committee  (ITC).  The ITC was
     created under TSCA to recommend chemicals for testing.  The
     ITC recommends chemicals in biannual reports to the  EPA
     Administrator.  This code also indicates the ITC report
     number in which a chemical substance was recommended for
     testing.

     OAR -  Office  of  Air and Radiation,  USEPA.

     OECD - The Organization for Economic Cooperation and
     Development.  OECD member nations agreed that certain high
     production volume chemicals should have a base set of
     screening level test data available.   These data are
     referred to as the Screening Information Data Set (SIDS).
     OECD considered groups of chemical substances in three
     phases  (1,  2, and 3); the number after the country code (see
     the following section)  denotes the phase.

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Country:  This column  (when  it  appears)  identifies the OECD
country sponsoring the chemicals identified  for  testing
under the OECD SIDS testing program.  Under  this voluntary
cooperative program, a country prepares  a data summary or
"Dossier" and conducts testing to provide missing  SIDS data.
The country (or in some cases, countries) handling the
chemical is identified by a 2-letter code.   The  codes  and
corresponding countries are listed in Table  1 below.

Table 1.  OECD Countries and Codes
OEC0
" % <*»imy
Austria
Belgium
Canada
Switzerland
Germany
Denmark
Finland
France
Italy
Japan
Netherlands
Norway
Sweden
United Kingdom
United States
COUNniY*
<*>DB *
AT
BE
CA
CH
DE
DK
FI
FR
rr
JP
NL
NO
SE
UK
US
OPPT - Office  of  Pollution  Prevention and Toxics,  USEPA.
OPPT has identified chemicals requiring testing  through its
Existing Chemicals Program.  Some of the OPPT  chemicals are
in the following multi-chemical rules:

  o   Neurotoxicity Endpoint Rule (N);

  o   Developmental/Reproductive Toxicity Endpoint Rule (D); and

  o   Dioxin/Furan Rule (D/F).

OW - Office of Water,  USEPA.

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Year Added:   The calendar year in which a chemical substance or
category was added to the MTL.

Status:  Status  code  (A)  is  assigned  to  chemicals when  they are
added to the MTL; (S) is assigned to chemicals for which EPA is
initiating development of a proposed test rule or negotiation for
a consent agreement; (F) is assigned to chemicals for which EPA
is developing a final test rule; and (T) is assigned to chemicals
under test via a voluntary agreement, consent order or final test
rule.  The estimated date for completion of the current stage in
the chemical testing process is indicated by a 2 digit year code.
For example, the entry "S/93," indicates that the proposed rule
or a consent order is under development and is expected to be
completed (and final rulemaking is expected to begin) in 1993.

Testing Needs: The last 3 columns indicate specific testing needs
for health effects (Health), environmental effects  (Environ) and
environmental fate (Fate).  Table 2 below lists the codes for
specific testing needs recommended for chemicals on the 1992 MTL.

Table 2. Testing Need Codes
Health Effects
ACUTE
CARC
CHR
DEVEL
DNEURO
EPID
IMUN
MUTA
NEURO
PK
PCHR
REPRO
SCHR
SIDS
OTHR
Acute toxicily
Carcinogenicily
Chronic Toxicily
Developmental Toxicity
Developmental Neuro-
toxicity
Epidemiology
Immunotoxicity
Mulagenicity
Neuroloxicity
Pharmocokinetics
Prechronic Toxicity/ 14-28
day
Reproductive Toxicity
Subchronic Toxicity/ 90 day
Screening Data
Other
Environmental Effects
ACUTE
CHR
SIDS
OTHR











Acute toxicity
Chronic toxicily
Screening Data
Other











Environmental Fate
BIOC
DEGR
MONIT
PCHM
TSPT
SIDS
OTHR








Bioconcentration
Biodegradation
Monitoring
Physical Chemical Property
Transport/ Transformation
Screening Data
Other








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IV. PARTICIPATING IN THE CHEMICAL TESTING PROGRAM

How to Submit Information and Comments

Existing test data, as well as any suggestions for subsequent
versions of the MIL should be sent in triplicate to the TSCA
Public Docket (TS-793),  Attn: TSCA Section 4 Master Testing List,
Office of Pollution Prevention and Toxics,  U.S.  Environmental
Protection Agency, 401 M Street SW.,  Washington, DC 20460.

How to Obtain Additional Information

For additional information, contact Susan Hazen, Director,
Environmental Assistance Division (TS-799),  Office of Pollution
Prevention and Toxics, U.S. Environmental Protection Agency,  401
M St SW, Washington DC 20460, (202) 554-1404, TDD  (202)  554-0557.

EPA is making test results and the results of the  Agency's  review
of test data available to the public through summaries that are
added to TSCATS (TSCA Test Submissions), a publicly accessible
computerized data base.   In addition, information  about testing
decisions resulting from Risk Management meetings  are contained
in the administrative record, a central  collection point
established by OPPT for materials on each chemical handled  by
OPPT's Existing Chemical Program.  Contents of the administrative
record include the following:

  o  a screening dossier containing relevant exposure and hazard
     information, recommendations from the screening work group,
     and the supporting rationale for that decision;

  o  summaries of major studies cited in the screening dossier;

  o  summaries of RM meetings;

  o  any letters of concern to industry or others  and replies;

  o  comments or correspondence from other parties outside  EPA.

The public can access the administrative record in the following
ways:

  1.  In person, by going to room G-004  of the Northeast Mall,
      EPA Headguarters,  at 401 M Street SW., Washington, D.C.
      from 8:00 a.m. to noon and 1:00 p.m.  to 4:00 p.m. Monday
      through Friday  (photocopy facilities are available);  or

  2.  By writing to TSCA Public Docket (TS-793), Attention: RM1
      Process, Office of Pollution Prevention and  Toxics, U.S.
      Environmental Protection Agency, 401 M Street SW.,
      Washington, D.C. 20460.


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APPENDS I.
    EPA'S EXISTING CHEMICALS PROGRAM:  AN OVERVIEW
What are "existing chemicals"?

The approximately 70,000 chemicals that can be commercially
produced or used ..under .the..Toxic .Substances Control Act  (.TSCA)
are known as "existing chemicals."  These chemicals are  listed  on
the TSCA Inventory.  As described below,  the Existing Chemicals
Program focusses on approximately 14,000 chemicals  (other  than
polymers) that are produced in quantities of more than 10,000
pounds per year.


Under what authority does EPA regulate existing chemicals?

TSCA, enacted in 1976, gives EPA authority to gather  information
about the toxicity of existing chemicals and the extent  to which
people and the environment are exposed to them,  to assess  whether
those chemicals pose unreasonable risks to humans and the
environment, and to take appropriate actions to control
unreasonable risks.   (TSCA also requires that EPA review most new
chemicals before they are manufactured.)

The law exempts eight product categories from TSCA regulatory
authorities:  pesticides, tobacco, nuclear material,  firearms and
ammunition, food,  food additives,  drugs,  and cosmetics.  Most of
these product categories are regulated under other federal laws.


What is the Existing Chemicals Program?

The Existing Chemicals Program is in EPA's Office of  Pollution
Prevention and Toxics (OPPT).   The program screens, establishes
testing requirements for, assesses, and develops strategies  for
managing risks posed by chemicals currently in production  or use.
Risk management encompasses any actions,  regulatory or non-
regulatory, to reduce or eliminate the likelihood of  harm  to
human health or the environment.

OPPT has recently revised Existing Chemicals Program  policies and
procedures.  These revisions are directed toward

•      enhancing the program's productivity—in  terms  of both the
       number  and  effectiveness of risk management actions taken;

•      increasing  public participation  in  the program;


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•      incorporating the concept of pollution prevention into all
       stages of the program;  and

•      integrating program priorities  as  closely as  possible with
       agency-wide environmental risk-reduction priorities.

To do this, OPPT will

•      focus on areas of highest risk;

•      direct its efforts toward "clusters"  of chemicals—groups
       of chemicals with common characteristics;  and

•      apply a wide range of approaches to risk management,  both
       regulatory and non-regulatory,  including,  for example,
       providing the affected  public with better information
       about chemicals and their potential risks.
How does the new Existing Chemicals Program work?

The fundamental elements of the new program are described below.



                    RISK MANAGEMENT ONE (RM1)

A hallmark of the new Existing Chemicals Program is flexibility—
flexibility to take quick, early action to reduce risk whenever-
possible.  The Risk Management One (RM1) phase of the program is
a framework for ensuring that fact-finding and risk-management
activities begin at the earliest possible time.

       Initial  Screening

The first phase of RM1 is initial screening to identify potential
health and environmental risks of chemicals and to propose
candidates for action under the Existing Chemicals Program.  In
broad terms, the population of potential candidates consists of
the approximately 14,000 chemicals (other than polymers, which
are generally of lesser concern due to limited bioavailability)
on EPA's TSCA Inventory that are produced in quantities greater
than 10,000 pounds annually.

In addition to its own analyses and databases, OPPT uses a
variety of resources to identify likely candidates for action,
including other Federal agencies, other EPA offices,
international organizations, states,  Indian tribes, and
environmental and labor groups.  Initial screening activities
rely primarily on readily available data concerning potential
hazard and potential exposure.

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       RM1 Committee

Chemicals identified as potential candidates for risk reduction
during initial screening next move to the RM1 Committee, which
consists of representatives from throughout OPPT.  The RM1
Committee, in consultation with other EPA offices and other
Federal agencies when appropriate, has two tasks:  (1) to reach
initial qualitative conclusions about the risk presented by each
chemical candidate identified during initial screening and (2) to
determine the next step for each candidate.  Where further action
is needed, OPPT will notify industry of its concern through a
"letter of concern" and will open an administrative record on the
chemicals of concern to allow all members of the public to track
the written materials EPA is evaluating.

Whenever possible, the program will take immediate steps to
reduce exposures to chemicals found during initial screening to
pose potential risk by (1) alerting industry and the public to
the problem and (2) promptly initiating actions to limit
exposures.  Actions at this stage may include encouraging
voluntary pollution prevention or other control activities by
industry; listing the chemical on the Toxics Release .Inventory (a
national inventory, established by the Emergency Planning and
Community Right-to-Know Act, of annual releases of toxic
chemicals from manufacturing facilities); acquiring additional
information about the chemical under TSCA authorities; requiring
notification of EPA before the chemical is manufactured for any
new use; or referring the chemical to another Federal agency for
risk management action.

In addition to taking any immediate action that is appropriate
and feasible, the RM1 Committee has four options for proceeding
with chemical candidates:

•      Place  the chemical on OPPT's  Master Testing List,  a list
       of chemicals given priority consideration for  testing.
       This course is  taken when there are significant
       information needs  regarding the chemical's hazard or
       exposure potential.   After testing is completed,  the
       chemical returns to the RM1 stage of the process  to
       determine whether  it should be dropped from further
       consideration or put on course for additional  action;  the
       test results may be used in ongoing risk management
       deliberations or regulatory development activities.

•      Place  the chemical on the Risk Reduction List. Chemicals
       suspected of posing or known  to pose significant  risks are
       placed on an action list,  known as the Risk Reduction
       List.   Chemicals are not removed from this list until  the
       concerns they present have been fully addressed and
       resolved.
                                14

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       Place the chemical on the Regional Activities Track.
       Chemicals assigned to the Regional Activities Track are
       those for which concern is limited to a few discrete
       geographical areas or those for which control activities
       reguire close coordination with state or local
       authorities.  When a chemical of concern is identified
       that meets either or both of these criteria,  OPPT
       immediately notifies all appropriate EPA regional offices
       and provides them with any support necessary to address
       the concern.

       Drop the chemical from the list of candidates for further
       fact-finding or risk-management activities.  Decisions to
       drop are made when early fact-finding fails to indicate a
       significant basis for concern or need for additional
       action.  (If OPPT subsequently receives new information
       about a chemical that has been "dropped," however,  that
       chemical may reenter RM1.)
                    RISK MANAGEMENT TWO (RM2)

Risk Management Two (RM2) is the second phase of the Existing
Chemicals Program.  The activities in this phase of the program
focus on (1) improving understanding about hazards posed by and
levels of exposure to particular chemicals and (2) developing and
adopting strategies to reduce or eliminate risks posed by
individual chemicals to human health or the environment.

       Selecting Chemicals for RM2  Action

The Risk Reduction List is the bridge between RM1 and RM2.  RM2
begins when a chemical is selected from the Risk Reduction List
for review.  In general, the following criteria determine the
order in which chemicals move from the Risk Reduction List to
RM2:  (1) the chemical's potential or known toxicity; (2) the
potential or known exposure to the chemical; and  (3) the extent
to which pollution prevention can be achieved.

       RM2  Investigation

When a chemical moves from the Risk Reduction List to RM2, OPPT
staff review existing information about the chemical and the risk
it presents, identify options to address the risk, and determine
what information is needed to select the most effective option.
Pollution prevention options are carefully considered at this
stage and may be recommended to industry for immediate voluntary
adoption.  Other interested EPA offices and federal agencies are
also actively involved in this phase.
                                15

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       RM2  Decision

After completing the RM2 investigation and considering any
information provided by the public, OPPT management reconvenes to
select a strategy to manage risks posed by the chemical in
question.  The strategy selected may contain one or more of a
wide range of actions, including:

•      initiating a public awareness campaign;

•      calling for voluntary action by industry;

•      referring the chemical to another EPA program office,
       regional office,  or other federal agency for action;

•      stepping up enforcement of existing regulations;

•      developing regulations, such as labeling requirements,
       restrictions on processing or use,  or bans (regulations
       developed under TSCA follow standard EPA rulemaking
       procedures, including provisions for public
       participation); and

•      dropping from further consideration,  if  warranted by
       information that is developed during the RM2
       investigation.


How can the public get involved in EPA's existing chemicals
process?

A central goal of the Agency's revitalized Existing Chemicals
Program is that its work be carried out with as much public
involvement as possible.  OPPT invites and encourages active
public participation, via comment and consultation, throughout
the process.  The Existing Chemicals Program also welcomes
nominations of chemical candidates for screening and/or review
and for inclusion on the Master Testing List, as well as
suggestions for early pollution-prevention and risk-reduction
actions.

The vehicle that permits full public participation in the
existing chemicals process is the administrative record, a
central collection point established by OPPT for materials on
each chemical under consideration.  The administrative record
includes the following documentation:

•      a screening dossier containing relevant  exposure and
       hazard information,  recommendations from the screening
       workgroup,  and the supporting rationale  for  that decision;

•      summaries of major studies cited in the  screening dossier;

                                16

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•      summaries of RM1 and RM2  meetings;

•      any letters of concern to industry  or others and replies;

•      comments and other correspondence from other parties
       outside of EPA.

The public can gain access to the RM administrative record in the
following two ways:

1.     In person, by going to room G-004 of the Northeast Mall,
       EPA Headquarters,  at 401  M Street SW.,  Washington,  D.C.,
       between 8:00 a.m.  and noon and 1:00 p.m.  and 4:00 p.m.
       Monday through Friday (facilities for photocopying are
       available); or

2.     By writing to the TSCA Public Docket (TS-793),  Attention:
       RMl Docket, Office of Pollution Prevention and  Toxics,
       U.S.  Environmental Protection Agency,  401 M Street,  S.W.,
       Washington, D.C. 20460.
NOTEt  A flow diagram of EPA's Existing Chemicals Program appears
       on the following page.
                                17

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                  OPPT EXISTING CHEMICAL PROGRAM
                                  COMPIETED TESTING
00

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APPENDIX n.  PUBLIC COMMENTS/ISSUES
 A) The MTL Should Include 3 Lists and a Process to Set Priorities

       Representatives  of  the chemical  industry recommended  that
EPA expand the MTL to include three lists: a list of testing
candidates; a list of those chemicals on which EPA is currently
working -(this would be similar to the present MTL); and a list
of chemicals that have completed testing.  In a related comment,
the chemical manufacturers questioned how EPA will set priorities
and select chemicals for the MTL.

       EPA  believes  the MTL  should  remain a  single list
containing chemicals for which EPA plans to initiate work within
the next several years.  This can be explained by describing how
the MTL is integrated into the OPPT Existing Chemicals Program
(ECP).   Briefly, the program works like this:  OPPT receives
requests for test data and nominations for additional testing
from other EPA offices, Federal and state agencies,  the ITC, and
other sources outside the program.   OPPT screens these chemicals
and others identified by OPPT through its ECP.  During this
screening,  OPPT determines whether (1)  additional information is
needed concerning a chemical's hazard and/or exposure potential,
and  (2) determines the relative priority of the action.   Those
chemicals judged to present high priority testing needs will be
added to the MTL.  Prioritization decisions will consider factors
such as:   the extent which testing addresses high-risk or high-
exposure situations; the potential for future regulatory or
voluntary activities to reduce risks or prevent pollution;
Congressional mandates; existence of a practical use and need for
the data;  and the existence of multiple needs for the data.   When
testing is completed, the data are evaluated via OPPT's ECP. To
learn more about the ECP,  refer to Appendix I.
 B) Categories are Helpful But Confusing

       Some commentors indicated that they  are  confused  by the
use of chemical categories.  For example, the categories may be
inadequately defined, chemicals may be in more than one category,
and some categories do not specify the chemicals included.  The
1992 MTL includes only those categories selected for testing
action by OPPT.  These categories are discussed in the section
entitled "Additions to the MTL."
                                19

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 C) The MTL Should Include All Testing

       Several  commentors  recommended  expanding the MTL to
include all testing for all industrial chemicals, including, for
example,  testing being conducted by the National Toxicology
Program.   EPA has chosen to keep the MTL limited to testing
related to authorities under section 4 of TSCA and other OPPT
coordinated voluntary testing activities such as the Screening
Information Data Set (SIDS)  testing effort under the aegis of the
Organization for Economic Cooperation and Development (OECD).
                               20

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                                 1992 Master Testing List

                      Index of Chemicals Sorted by CAS Number
CAS No.
Chemical Name
Source
    NONE    Commercial hexane	ITC/16
    NONE  -. Dioxins, polyhalogenated dibenzo-p-	.......	OPPT/DF
    NONE    Furans, polyhalogenated dibenzo- 	OPPT/DF
  50-00-0    Formaldehyde	OPPT
  50-81-7    L-Ascorbic acid	OECD/3
  57-10-3    Hexadecanoic acid	OPPT/D
  57-13-6    Urea  	OECD/2
  59-67-6    Pyridinecarboxylic acid. 3-  	OECD/1
  60-29-7    Diethyl ether	OPPT/N
  67-63-0    Isopropanol	ITC/20
  67-64-1    Acetone	-.	OPPT/N
  67-64-1    Acetone	ITC/28
  70-55-3    Benzenesulfonamide. 4-methyl-	OECD/1
  71-36-3    Butanol. 1-	OPPT/N
  71-36-3    Butanol. 1-  	ITC/28
  71-55-6    Trichloroethane, 1.1.1-	ITC/2
  74-85-1    Ethylene	OECD/2
  74-87-3    Chloromethane  	OW
  74-97-5    Bromochloromethane	OPPT/D
  75-00-3    Chloroethane  	OW
  75-02-5    Vinyl fluoride  	ITC/7
  75-15-0    Carbon disulfide  	OPPT/D
  75-34-3    Dichloroethane.  1,1-	OW
  75-35-4    1,1-Dichloroethytene .	OAR
  75-38-7    Vinylidene fluoride	ITC/7
  75-54-7    Silane. dichloromethyl-	OECD/1
  75-69-4    Fluorotrichloromethane	OW
  75-77-4    Silane. chlorotrimethyl-	OECD/1
  75-78-5    Silane, dichlorodimethyl- .	OECD/1
  75-79-6    Silane, trichloromethyl-	OECD/1
  75-86-5    Acetone cyanhydrin	OECD/2
  75-91-2    Hydroperoxide, 1,1-dimethylethyl-	OECD/1
  75-98-9    2,2-Dimethylpropanoic acid  	OECD/3
  76-03-9    Trichloroacetic acid 	OECD/2
  77-99-6    Propanediol, 2-ethyl-2-(hydroxymethyl)-, 1,3-	OECD/1
  78-33-1    Phosphate, tris(tert-butylphenyl)  	ITC/ 2
  78-40-0    Triethyl phosphate	OECD/1
  78-83-1    Isobutyl alcohol	ITC/28

                                              21

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                                 1992 Master Testing List

                      Index of Chemicals Sorted by CAS  Number
CAS NO.
Chemical Name
Source
  78-83-1     Isobutyl alcohol	OPPT/N
  78-84-2     Propanal. 2-methyl-	OECD/1
  78-93-3     Methyl ethyl Jcetone					OECD/2
  78-97-7     Propanenitrile, 2-hydroxy-	OECD/2
  79-00-5     1,1.2-Trichloroethane	OW
  79-10-7     Acrylic acid  	ITC/27
  79-11-8     Chloroacetic acid	OECD/2
  79-31-2     Methylpropanoic acid, 2- 	OPPT/D
  79-34-5     Tetrachloroethane, 1,1.2.2-  	OW
  79-92-5     Camphene  	OECD/1
  79-94-7     Tetrabromobisphenol A  	OECD/3
  79-94-7     Tetrabromobisphenol A	 OPPT/DF
  80-05-7     Bisphenol A  	OECD/3
  80-43-3     Dicumyl peroxide	OECD/2
  81-11-8     Benzenesulfonic acid,  2.2'-(1,2-ethenedi-	OECD/3
  82-45-1     1 -Aminoanthraquinone	OECD/3
  87-10-5     Tribromosalicylanilide, 3.4',5-	OPPT/DF
  88-72-2     Nhrotoluene, 2-	OECD/1
  89-61-2     Benzene, 1,4-dichloro-2-nitro-	OECD/3
  92-70-6     2-Hydroxy-3-naphthoic acid  	OECD/3
  95-48-7     o-Cresol	OECD/2
  95-54-5     Phenylenediamine, ortho-	ITC/ 6
  95-73-8     2.4-Dichlorotoluene	OECD/2
  95-80-7     Diaminotoluene, 2.4-	OPPT/D
  96-29-7     Methyl ethyl ketoxime  	ITC/19
  97-65-4     Butanedioic acid, methylene-	OECD/2
  98-56-6     Benzene, 1 -chloro-4-(trifluoromethyl)-	OECD/2
  98-86-2     Acetophenone	ITC/27
  99-09-2     Nrtroaniline. 3-	OECD/1
 100-21-0     Terephthalic acid	OPPT/D
 100-21-0     Terephthalic acid	OECD/2
 100-40-3     Vinylcyclohexene, 4-	ITC/27
 100-52-7     Benzaldehyde	OECD/3
 101-54-2     1,4-Benzenediamine, N-phenyl-	OECD/3
 101-68-8     Methylenediphenyl diisocyanate. 4,4'-	OECD/3
 101-72-4     Benzenediamine. N-(1-methylethyl)-N'-phenyl-, 1,4-  	OECD/3
 101-90-6     Resorcinol diglycidyl ether  	ITC/ 3
 102-01-2     Acetoacetanilide 	OECD/3
 102-71-6     Triethanolamine	OECD/3
                                               22

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                                 1992 Master Testing List

                      Index of  Chemicals Sorted by CAS  Number
CAS No.
Chemical Name
Source
 103-23-1     Di(2-ethylhexyl) adipate	ITC/28
 103-65-1     Propylbenzene, n-  	OW
 104-76-7     Ethylhexanol. 2-	 OECD/3
 104-76-7     Ethylhexanol. 2- 	OPPT/D
 104-90-5     2-Picoline, 5-ethyl-	OECD/3
 104-94-9     Aniline. 4-methoxy-	OECD/2
 105-05-5     Benzene. 1.4-diethyl-	OECD/2
 105-76-0     Maleic acid, dibutyl ester  	OECD/2
 105-99-7     Di-butyl adipate	OECD/3
 106-42-3     p-Xylene   	OECD/3
 106-50-3     Phenylenediamine, para-	ITC/6
 106-90-1     Glycidyl acrylate	ITC/ 3
 106-91-2     Glycidyl methacrylate	ITC/ 3
 106-92-3     Allyl glycidyl ether	ITC/ 3
 106-98-9     Butene. 1-  	OECD/2
 107-01-7     Butene, 2-  	OECD/1
 107-13-1     Acrylonitrile  	OPPT/D
 107-21-1     Ethylene glycol 	OECD/2
 107-22-2     Glyoxal  	OECD/3
 107-64-2     1-Octadecanaminium, N.N-dimethyl-N-octad	OECD/3
 107-66-4     Phosphoric acid, dibutyl ester	OECD/2
 108-01-0     Dimethylaminoethanol  	OECD/2
 108-10-1     Methyl isobutyl ketone	OECD/2
 108-10-1     Methyl isobutyl ketone	OPPT/N
 108-24-7     Acetic anhydride	OECD/2
 108-44-1     m-Toluidine	OECD/3
 108-45-2     Phenylenediamine. meta-  	ITC/6
 108-67-8     Trimethylbenzene. 1.3,5-	OW
 108-78-1     Melamine	OECD/2
 108-83-8     Heptanone, 2.6-dimethyl-, 4-  	OECD/2
 108-89-4     Pyridine. 4-methyl-  	OECD/3
 108-94-1     Cyclohexanone	OECD/3
 108-95-2     Phenol	ITC/27
 108-98-5     Thiophenol	ITC/28
 108-99-6     Pyridine. 3-methyl-  	OECD/2
 109-06-8     Pyridine. 2-methyl-  	OECD/3
 109-55-7     1 -Amino-3-dimethylamino propane	OECD/2
 109-69-3     Chlorobutane. 1-	OECD/2
 109-99-9     Tetrahydrofuran  	OPPT/N

                                              23

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                                 1992 Master Testing List

                      Index of Chemicals Sorted by CAS Number
CAS No.
Chemical Name
Source
 110-27-0    Isopropyl myristate  	OECD/3
 110-30-5    Octadecanamide, N.N'-1,2-ethanediylbis-	OECD/3
 110-80-5    Ethoxyethanol. 2-		OPPT/N
 110-82-7    Cyclohexane	ITC/18
 110-91-8    Morpholine	OECD/3
 111-11-5    Octanoic acid, methyl ester  	OPPT/D
 111-40-0    Diethylenetriamine	OECD/2
 111-42-2    Diethanolamine	OECD/2
 111-46-6    Diethylene glycol	OECD/3
 111-66-0    1-Octane  	OECD/2
 111-69-3    1.4-Dicyanobutane  	OECD/3
 1.12-18-5    N.N-Dimethyldodecylamine	OECD/2
 112-24-3    Triethylene tetramine	OECD/3
 112-35-6    Ethanol, 2-[2-(2-methoxyethoxy) ethoxyl-	OECD/3
 112-41-4    1-Dodecene	 OECD/2
 112-50-5    Triethylene glycol, monoethyl ether	OECD/3
 112-53-8    Dodecanol, 1-	OECD/1
 112-72-1    1-Tetradecanol  	OECD/3
 112-90-3    9-Octadecen-1-amine, (Z)-  	OECD/3,
 112-92-5    Octadecanol, 1-	OECD/11
 115-11-7    2-Methylpropene	OECD/3
 115-18-4    3-Buten-2-ol, 2-methyl-  	OECD/2
 115-19-5    3-Butyn-2-ol. 2-methyl-  	OECD/2
 115-86-6    Triphenyl phosphate	ITC/ 2
 115-96-8    Tris(2-chloroethyl)phosphate	ITC/23
 116-15-4    Hexafiuoropropene	OECD/3
 118-69-4    2,6-Dichlorotoluene	OECD/3
 118-75-2    Chloranfl	OPPT/DF
 118-79-6    2.4,6-Tribromophenol   	OPPT/DF
 120-61-6    Dimethyl terephthalate	ITC/28
 120-61-6    Dimethyl terephthalate	OECD/2
 120-78-5    Benzthiazole disulfide	OECD/3
 120-80-9    Hydroxyphenol, o-	OPPT/D
 120-82-1    Trichlorobenzene. 1,2.4-  	ITC/3
 121-14-2    Benzene. 1-methyl-2.4-dinitro- 	OECD/2
 121-33-5    Vanillin	OECD/3
 121-69-7    Dimethylaniline.  N.N-	ITC/27
 122-60-1    Phenyl glycidyl ether 	ITC/ 3
 123-01-3    Dodecylbenzene 	OECD/3

                                              24

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                                 1992 Master Testing List

                      Index of  Chemicals Sorted by CAS Number
CAS No.
Chemical Name
Source
 123-30-8    Aminophenol, p-	OPPT/D
 123-31-9    Hydroquinone	OECD/3
 123-38-6    Propanal	OECD/1
 123-72-8    Butyraldehyde	OECD/3
 123-77-3    Diazenedicarboxamide 	OECD/3
 123-86-4    Butyl acetate, n-	OPPT/N
 124-09-4    1,6-Hexanediamine  	OECD/2
 124-18-5    n-Decane	OECD/2
 126-30-7    Propanediol. 2,2-dimethyl-, 1.3-  	OECD/1
 126-58-9    1,3-Propanediol, 2.2'-[oxybis-(methylene)	OECD/1
 126-73-8    Tributyl phosphate	ITC/18
 126-80-7    1,3-Bis[3-(2,3-epoxypropoxy)-propyl]tetramethyldisiloxane	ITC/ 3
 126-99-8    Chloroprene  	OECD/2
 127-19-5    Dimethylacetamide  	OECD/3
 128-39-2    Di-tert-butylphenol	ITC/18
 128-39-2    Di-tert-butylphenol	OECD/1
 135-19-3    2-Napththol  	OECD/3
 140-66-9    Phenol, 4-{1,1.3,3-tetramethylbutyl)-	OECD/3
 141-78-6    Ethyl acetate	ITC/27
 141-78-6    Ethyl acetate	OPPT/N
 141-79-7    Mesityl oxide  	ITC/ 4
 141-79-7    Mesityl oxide  	OECD/3
 143-33-9    Sodium cyanide	ITC/27
 147-14-8    C.I. Pigment Blue 15  	OECD/1
 149-57-5    Ethyl hexanoic acid. 2-	OECD/2
 151-21-3    Sodium lauryl sulfate	OECD/2
 156-43-4    Benzenamine, 4-ethoxy-	OECD/1
 294-62-2    Cyclododecane	OECD/1
 482-89-3    3H-lndol-3-one. 2-{1.3-dihydro-3-oxo-2H-	OECD/2
 504-60-9    Pentadiene. 1.3-	OECD/1
 512-56-1     Phosphoric acid, trimethyl  ester	OECD/3
 527-60-6    Phenol, 2.4.6-trimethyl-	OECD/2
 536-90-3    Benzenamine, 3-methoxy-	OECD/1
 556-52-5    Glycidol	ITC/ 3
 556-67-2    Octamethylcyclotetrasiloxane 	OECD/1
 576-26-1     Dimethylphenol. 2.6-	ITC/27
 584-03-2    Butanediol, 1.2-   	OECD/1
 590-86-3    Butanal. 3-methyl-	OECD/2
 592-41-6    1-Hexene	OECD/2
                                              25

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                                    1992 Master Testing Ust

                         Index of Chemicals Sorted by CAS  Number
   CAS No.
Chemical Name
                                                                                      Source
    611-06-3
    623-91-6
    628-63-7
    629-11-8
    629-59-4
    693-23-2
    793-24-8
    822-06-0
    836-30-6
    872-05-9
    872-50-4
    930-37-0
  1000-82-4
  1120-36-1
  1163-19-5
  1163-19-5
  1241-94-7
  1309-64-4
  1330-78-5
  1634-04-4
  1675-54-3
  1758-73-2
  1854-26-8
  1879-09-0
  1912-24-9
 2210-79-9
 2224-15-9
 2238-07-5
 2402-79-1
 2425-01-6
 2425-79-8
 2426-08-6
 2431-50-7
 2461-15-6
 2461-18-9
 2524-03-0
 2524-04-1
 2528-36-1
2530-83-8

                                                       ITC/22
                                                       ITC/25
   Benzene. 2,4-dichloro-l-nitro-	
   2-Butenedioic acid <£)-. diethyl ester ...
   Amyl acetate, n-	OECD/3
   Hexamethylene glycol	  	    	OPPT/N
   Tetradecane	
   Dodecanedioic acid	?^CD/2
   1.4-Benzenediamine. N-(1.3-dimethylbutyl  	.... . .	
   Hexamethylene diisocyanate, 1,6-
  Benzenamine, 4-nitro-N-phenyl- .
  Decene. n-	  . .    	OECD/3
  Methylpyrrolidone. N-	OECD/2
  Methyl glycidyl ether	   	CPSC
  Methylol urea	'.'.'.'.'.'.'.'.	'TC/ 3
  1-Tetradecene	    	' ' ' ' ITc/12
  Decabromodiphenyl ether	°1^2
  Decabromodiphenyl ether
  Ethylhexyl diphenyl phosphate, 2-	
  Antimony trioxide  	        	
  Tricresyl phosphate	'.'.'.'.'.'.'.'.'.'.'.'.'.'.	IT°/4
  Methyl tert-butyl ether	'.'.'.'.'.	'TC/ 2
  Bisphenol A diglycidyl ether  		'TC/2°
  Methanesulfinic acid, aminoimino-	     3
  2-lmidazolidinone. 4.5-dihydroxy-1.3-bis              	ncnn'/1
 6-tert-Butyl-2,4-xylenol  ...                	OECD/3
 Atrazine	'.'.".'.'.'.	OECD/3
 Cresyl glycidyl ether, o-		OECD/2
 Ethylene glycol diglycidyl ether	  	I™.3
 Diglycidyl ether	" " '	_r 3
 Tetrachloropyridine. 2.3.5.6-	'.'.'.'.'.	
 Hydroquinone diglycidyl ether	
 Butanediol diglycidyl ether, 1,4-  ..'.'.'.'.'.'.	
 Butyl glycidyl ether, n-	  	TC/ 3
 Butene. 2.3.4-trichloro-, 1-	   	ITC/ 3
 Ethylhexyl glycidyl ether. 2-	'.'.'.	°ECD/1
 Lauryl glycidyl ether	     3
 Dimethyl chlorothiophosphate	J[C/ 3
 Diethyl chlorothiophosphate	'.'.'.'.'.'.'.'.'.'.	OECD/3
Di(n-butyl) phenyl phosphate	'.'.'.'.'.	|TC/D/3
Glycidoxypropyltrimethyoxysilane. gamma-	.... . .	,TC/ 3
                                                      OECD/1
                                                      ITC/3
                                              26

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                                    1992 Master Testing List

                         Index of  Chemicals Sorted by CAS Number
  CAS No.
Chemical Name
Source
 2581-34-2    Phenol. 3-methyl-4-nitro-  	OECD/2
 2897-60-1    3-(Methyldiethoxysilyl)propyl glycidyl ether	ITC/ 3
 3039-83-6    Ethenesulfonic acid, sodium salt	 ... .	  OECD/2
 3072-84-2    Tetrabromobisphenol A diglycidyl ether. 2,2',6.6'-	ITC/ 3
 3101-60-8    Butylphenyl glycidyl ether, p-tert-  	ITC/ 3
 3188-83-8    2-Methylol-4.4'-isopropylidene-diphenol diglycidyl ether	ITC/ 3
 3194-55-6    Hexabromocyclododecane  	ITC/25
 3209-22-1    Benzene, 1,2-dichloro-3-nhro-	OECD/1
 3568-29-4    Glycerol 1,3-diglycidyl ether	ITC/ 3
 3926-62-3    Acetic acid, chloro-, sodium salt  	OECD/2
 4016-11-9    Ethyl glycidyl ether  	ITC/ 3
 40.16-14-2    Isopropyl glycidyl ether  	ITC/ 3
 4162-45-2    Tetrabromobisphenol-A-bis(ethoxyla	OPPT/DF
 4170-30-3    Crotonaldehyde	ITC/22
 4259-15-8    Phosphorodithioic acid, o.o-bis(2-ethyln-	OECD/2
 4461-52-3    Methoxymethanol	OECD/2
 4979-32-2    N,N-Dicyclohexyl-2-benzothiazolesulfenam	OECD/3
 5026-74-4    4-(Diglycidylamino)phenyl glycidyl ether	ITC/ 3
 5255-75-4    Nrtrophenyl glycidyl ether, p-	ITC/ 3
 5281-04-9    D and C Red No 7	OECD/2
 5392-40-5    Citral	OECD/3
 5493-45-8    Diglycidyl ester of hexahydro-phthalic acid  	ITC/ 3
 6178-32-1     p-Nonylphenyl glycidyl ether .  .	ITC/ 3
 6386-38-5    Benzenepropanoic acid. 3,5-bis(1,1-di-methylethyD-	OECD/1
 6419-19-8    Phosphonic acid. [nitrilotris-(methylene)]tris-	OECD/1
 6742-54-7    Benzene, undecyl-	OECD/3
 6846-50-0    2,2.4-Trimethyl-1.3-pentanediol ester  	OECD/2
 7195-45-1     Diglycidyl ester of phthalic acid	ITC/ 3
 7328-97-4    1,1.2,2-Tetra(p-hydroxyphenyl)-ethane tetraglycidyl ether	ITC/ 3
 7422-52-8    3-[Bis(trimethylsiloxy)methyl]-propyl glycidyl ether	ITC/ 3
 7665-72-7    Butyl glycidyl ether, tert-  	ITC/ 3
 9011-05-6    Urea-formaldehyde  resins/ formaldehyde	ITC/12
11631-19-5    Decabromodiphenyloxide  	OPPT/DF
13236-02-7    Glycerol triglycidyl ether	ITC/ 3
13561-08-5    Diglycidylphenyl glycidyl ether, 2,6-	ITC/ 3
13674-84-5    2-Propanol. 1-chloro-. phosphate (3:1)	OECD/3
14228-73-0    Bis(glycidyloxymethyl) cyclohexane. 1,4-	ITC/ 3
15965-99-8    Hexadecyl glycidyl ether	ITC/ 3
16245-97-9    Octadecyl  glycidyl ether, n-	ITC/ 3

                                                 27

-------
                                    1992 Master Testing List

                        Index of  Chemicals Sorted by CAS  Number
  CAS No.
Chemical Name
Source
17557-23-2     Neopentyl glycol diglycidyl ether	ITC/ 3
17963-04-1     3-(Dimethylethoxysilyl)propyl glycidyl ether	ITC/ 3
20217-01-0 .    Dibromophenyl glycidyJ ether, 2,4-.  .		 . .	ITC/ 3
22421-59-6     Dibromo-4-methylphenyl glycidyl ether, 2.6-	ITC/ 3
24800-44-0     Tripropylene glycol  	OECD/2
25155-23-1     Phosphate, trixylyl	ITC/ 2
25265-77-4     Propanoic acid, 2-methyl-, monoester	OECD/1
25327-89-3     Tetrabromobisphenol-A. ally! ether	OPPT/DF
26444-49-5     Phosphoric acid,  methylphenyldiphenyle	OECD/2
26447-14-3     Cresyl glycidyl ether (mixed isomers)	ITC/ 3
26761-45-5     Glycidyl ester of  neodecanoic acid	ITC/ 3
26967-76-0     Phosphate, tris(isopropylphenyl)	 ITC/ 2
27193-86-8     Dodecylphenol  	OPPT/D
28108-99-8     Isopropylphenyl diphenyl phosphate	ITC/ 2
28629-66-5     Phosphorodithioic acid, o.o-diisooctyl	OECD/2
29171-20-8     6-Octen-1-yn-3-ol. 3.7-dimethyl-	OECD/1
29590-42-9     Iso-octyl acrylate	OECD/1
29761-21-5     Isodecyl diphenyl phosphate	ITC/ 2
32534-81-9     Pentabromodiphenyl ether  	ITC/25
32534-81-9     Pentabromodiphenyl ether	OPPT/Dfl
32536-52-0     Octabromodiphenyl ether	ITC/25
32536-52-0     Octabromodiphenyl ether	OPPT/DF
32568-89-1     3-(2-Glycidyloxypropyl)-1-glycidol-5.5-dimethy!-hydantoin	ITC/ 3
35243-89-1     Dibromopropyl glycidyl ether. 1,2-	ITC/ 3
37853-59-1     Ethane,  1,2-bis(2,4,6-tribromophenoxy)-	OPPT/DF
37853-59-1     Ethane,  1,2-bis(2,4,6-tribromophenoxy)-	ITC/25
37971-36-1     Butanetricarboxylic acid, 1,2,4-	OECD/1
38304-52-8     1.3-Bis(5.5-dimethyl-1-glycidyl-hydantoin-3-yl)-2-glycidyl	ITC/ 3
38954-75-5     Tetradecyl glycidyl ether	ITC/ 3
54208-63-8     Bisphenol F diglycidyl ether	ITC/ 3
56803-37-3     Phosphate, tert-butylphenyl diphenyl  	ITC/ 2
60501-41-9     Oleyl glycidyl ether  	ITC/ 3
61578-04-9     Cumyiphenyl glycidyl ether, p-  	ITC/ 3
65652-41-7     Phosphate, bis(tert-butylphenyl) phenyl  	ITC/ 2
67786-03-2     [Bis(4-glycidyloxyphenyl)]-(2-glycidyl-oxyphenyl)methane	ITC/ 3
68081-84-5     Alkyl (C10-C16)  glycidyl ether  	ITC/ 3
68134-06-5     Dimethylbutyl glycidyl ether,. 1.3-	ITC/ 3
68134-07-6     Methylheptyl glycidyl ether. 6-  	ITC/ 3
68517-02-2     Tris(4-hydroxyphenyl)propane-triglycidyl ether	ITC/ 3

                                                 28

-------
                                    1992 Master Testing List

                         Index of Chemicals Sorted by CAS Number
   CAS No.
Chemical Name
Source
 68609-96-1     Alkyl (C8-C10) glycidyl ether  	ITC/ 3
 68609-97-2     Alkyl (C12-C14) glycidyl ether  	ITC/ 3
 68611-64-3     Urea-formaldehyde resin		ITC 12
 68937-41-7     Phenol Isopropylated phosphate  	ITC/ 2
 68959-23-9     Hexanetriol triglycidyl ether. 1,2,6-  	ITC/ 3
 68987-80-4     Alkyl (C6-C12) glycidyl ether  	ITC/ 3
 69155-42-6     1.1.1.3.5.7.7,7-Octamethyl-3.5-bis(6,7-epoxy-4-oxaheptyl)-	ITC/ 3
 71033-08-4     2.2-Bis[p-2-glycidyloxy-3-butoxypropyloxy)-phenyl]propane  	ITC/ 3
 71808-64-5     Dimethoxysilane, (3-glycidoxy-propyl)(3-chloropropyl>-	ITC/ 3
 72319-24-5     2.2'-[{1-Methylethylidene)bis[4,1-phenyleneoxy-3,1-propanedioxy	ITC/ 3
 74398-71-3     1,2,3-Propanetriyl ester of 12-(oxiranylmethoxy)-9-octadecanoic acid	ITC/ 3
 75150-13-9     2.4-Dibromo-6-methylphenyl glycidyl ether	ITC/ 3
 84852-15-3     Nonylphenol. 4-branched  	OPPT
 97380-66-3     Urea-formaldehyde resin	ITC/12
142844-00-6     Refractory ceramic fibers	OPPT
                                                 29

-------
                                  1992 Master Testing List




                           Index of Sources By Alphabetical Order
Source Identity                                                                     Page








Categories ......	 31




Consumer Product Safety Commission (CPSC)	33




Interagency Testing Committee (ITC)  	33




          Aryl Phosphates 	33




          Glycidol & Derivatives 	34




          Brominated Rame Retardants	39




          Other ITC Chemicals  	39




Office of Air and Radiation (OAR)	42




Office of Pollution Prevention and Toxics (OPPT)  	42




           Developmental and Reproductive Effects	43




           Neurotoxicologic Effects	43




           Dioxins/Furans	44




Office of Water (OW)  	45




Organization for Economic Cooperation and Development (OECD)	46




          Phase 1  	 46




          Phase 2	47




          Phase 3	50




Endnotes	53
                                               30

-------
                                   1992 Master Testing List
                                           Categories
Category Name       Source
Air Toxics                OAR
Indoor Air Source          OPPT
Characterization - Carpet
                 Yr
               Added
               1992


               1991
Indoor Air Source
Characterization - Interior
Architectural Coatings


New Chemicals Program
Categories of Concern
OPPT & OAR   1992
OPPT
1992
Persistent
Bioaccumulators
OPPT
1992
Comment

Data needed to determine "residual risk" posed by
Hazardous Air Pollutants listed under section 112
of the Clean Atr Act Amendments.

Agreement has been reached to generate test data
needed for characterization of Total Volatile
Organic Compound (TVOC) emissions from carpets,
carpet cushions, and carpet adhesives.  The
emissions testing program was developed via EPA's
Carpet Policy Dialogue; and testing was initiated in
1991. (56 FR 67317, December 30. 1991).

This effort will focus on developing data needed to
characterize specific chemical emissions and TVOC
emissions from indoor air sources such as paints,
varnishes, and other coatings.

EPA's New Chemicals Program has established 40
chemical  categories whereby TSCA section 5(e)
risk determinations have been made based upon
health or environmental concerns identified through
structure-activity relationships (SAR). These
categories were established to simplify the TSCA
section 5 regulatory decision process and  represent
part of a general effort by the Agency to promote
the development of safer chemicals. As part of
this activity, EPA will work with companies to
identify and obtain the test data needed to better
define the limits of each category and to improve
the understanding of the risks (hazard and
exposure) presented by TSCA section 5 "Pre-
Manufacture Notification" (PMN) substances within
these categories.

Chemicals that combine persistence and
bioaccumulation are being identified through
Structure Activity relationships (SAR) analysis.
Testing will likely focus on confirming
persistence/bioaccumulation potential and
characterizing environmental effects.
                                                 31

-------
                                   1992 Master Testing List
                                    Categories (continued)
Category Name

Polychlorinated
Dioxins/Furans in Wood and
Paper Pulp. Sludge
Respirable Fibers
SARA Section 104
TRI Screening
             Yr
Source    Added   Comment

OPPT       1992      Polyhalogenated dioxins and furans (D/F) are produced
                      when wood pulp is bleached with chlorine or chlorine-
                      derivative compounds*- -The sludge resulting from the
                      wastewater treatment process in pulp and paper mills
                      have been found to be contaminated with D/F.  The
                      Agency is concerned with risks to humans and the
                      environment from the disposal of this sludge through
                      land application, and has determined a need for
                      additional testing and monitoring data to evaluate the
                      risks. The testing  program could include determination
                      of D/F concentrations in pulp and paper mill sludge  and
                      an evaluation of the environmental fate and ecological
                      effects of D/F in this type of sludge.
OPPT       1992      EPA plans to investigate potential inhalation health
                      hazards and better characterize potential exposures to
                      synthetic and naturally-occurring respirable fibers.

OPPT       1992      Priority data needs on industrial chemicals identified by
                      ATSDR following preparation of Toxicological Profile
                      will be referred for handling by OPPT under TSCA
                      section 4.
OPPT       1992      High volume/high release chemicals on the Toxics
                      Release Inventory have been targeted for development
                      of screening level test data.
                                                 32

-------
CAS No.
     872-50-4
      78-33-1

     115-86-6

    1241-94-7

    1330-78-5

    2528-36-1

  25155-23-1

  26967-76-0

  28108-99-8

  29761-21-5

  56803-37-3

  65652-41-7
        Chemical Nam*
Methylpyrrolidone, N-
Ptiosphate, tris(tert-butylphenyl)

Phosphate, triphenyl

Phosphate, ethylhexyl diphenyl 2-

Phosphate, tricresyl

Phosphate, di(n-butyl) phenyl

Phosphate, trixylyl

Phosphate, tris(isopropylphenyl)

Phosphate, isopropylphenyl diphenyl

Phosphate, isodecyl diphenyl

Phosphate, tert-butylphenyl diphenyl

Phosphate, bis(tert-butylphenyl)
phenyl
                                                          1992 Master Testing List
                                                                     Chemicals
Yr
Source Added Status

xmsurre
CPSC
MiW«tjlau*A tt^ti*
Product Sara
90
brteregency Testing
ty Commission
F/93 CARC,
MUTA,
Committee

Health
: »«
rang EiKiputiiis
Environ
fate
!
NEURO, PK, SCHR
DEVEL, REPRO




Aryf Phosphates
ITC/2
ITC/2
ITC/2
ITC/2
ITC/2
ITC/2
ITC/2
ITC/2
ITC/2
ITC/2
ITC/2
92
92
92
92
92
92
92
92
92
92
92
F/93
F/93
F/93
F/93
F/93
F/93
F/93
F/93
F/93
F/93
F/93
DEVEL,
DEVEL,
DEVEL,
DEVEL,
DEVEL,
DEVEL,
DEVEL,
DEVEL,
DEVEL,
DEVEL,
DEVEL,
NEURO,
NEURO,
NEURO,
NEURO,
NEURO,
NEURO,
NEURO,
NEURO,
NEURO,
NEURO,
NEURO,
REPRO
REPRO
REPRO
REPRO
REPRO
REPRO
REPRO
REPRO
REPRO
REPRO
REPRO
CHR
CHR
CHR
CHR
CHR
CHR
CHR
CHR
CHR
CHR
CHR
DEGR
DEGR
DEGR
DEGR
DEGR
DEGR
DEGR
DEGR
DEGR
DEGR
DEGR
                                                                         33

-------
CAS No.
Chemical Name
 1992 Master Testing List

           Chemicals

             Yr
Source   Added  Status    	
Heahh
 Testing Ehdpoints

_     Environ   •.:...
Fate
  68937-41-7     Phosphate, bis(isopropylphenyl
                 phenyl
                                                          Aiyl Phosphate* (continued)
                              ITC/ 2        92      F/93      DEVEL, NEURO, REPRO
                                                            Gfyckfol & Derivatives1
                                                           CHR
                                     DEGR
    101-90-6     Resorcinol diglycidyl ether

    106-90-1     Glycidyl acrylate

    106-91-2     Glycidyl methacrylate

    106-92-3     Ally I glycidyl ether


    122-60-1     Phenyl glycidy! ether

    126-80-7     1,3-Bis[3-(2,3-epoxypropoxy|-
                 propylltetramethyldisiloxane

    556-52-5     Glycidol

    930-37-0     Methyl  glycidyl ether

   1675-54-3     Bisphenol A diglycidyl  ether


   2210-79-9     Cresyl glycidyl ether, o-

   2224-15-9     Ethylene glycol diglycidyl ether

   2238-07-5     Diglycidyl ether
ITC/ 3
ITC/ 3
ITC/ 3
ITC/ 3
ITC/ 3
ITC/ 3
ITC/ 3
ITC/ 3
ITC/ 3
ITC/ 3
ITC/ 3
ITC/ 3
92
92
92
92
92
92
92
92
92
92
92
92
F/94
F/94
F/94
F/94
F/94
F/94
F/94
F/94
F/94
F/94
F/94
F/94
                                                            CARC, MUTA, SCHR

                                                            DEVEL, MUTA, SCHR

                                                            DEVEL, MUTA. NEURO,
                                                            REPRO, SCHR

                                                            NEURO, REPRO
                                                            MUTA, NEURO, REPRO
                                                            CARC, DEVEL, MUTA, NEURO,
                                                            REPRO, SCHR

                                                            DEVEL, MUTA, NEURO, SCHR
                                                                     34

-------
CAS No.
   2425-01-6

   2425-79-8

   2426-08-6


   2461-15-6

   2461-18-9

   2530-83-8


   2897-60-1


   3072-84-2


   3101-60-8

   3188-83-8


   3568-29-4

   4016-11-9

   4016-14-2

   5026-74-4
        Chemical Name
Hydroquinone diglycidyl ether

Butanediol diglycidyl ether, 1,4-

Butyl glycidyl ether, n-


Ethylhexyl glycidyl ether, 2-

Lauryl glycidyl ether

Glycidoxypropyltrimethyoxysilane,
gamma-

3-(Methyldiethoxysilyl)propyl
glycidyl ether

Tetrabromobisphenol A diglycidyl
ether, 2,2',6,6'-

Butylphenyl glycidyl ether, p-tert-

2-Methylol-4,4'-isopropylidene-
diphenol diglycidyl ether

Glycerol 1,3-diglycidyl ether

Ethyl glycidyl ether

Isopropyl glycidyl ether

4-(Diglycidylamino)phenyl  glycidyl
ether
                                                           1992 Master Testing List
                                                                      Chemicals

                                                                        Yr
                                                                                                Testing Endpoints
Source
GtycMol
ITC/3
ITC/3
ITC/3
ITC/3
ITC/3
ITC/3
ITC/3
ITC/3
ITC/3
ITC/3
ITC/3
ITC/3
ITC/3
ITC/3
Added
.11 u jt fcy»iiijii
ana iwira
92
92
92
92
92
92
92
92
92
92
92
92
92
92
Status Health Environ Fate
1
F/94
F/94 MUTA, NEURO, SCHR
F/94 CARC, DEVEL, MUTA,
NEURO, REPRO, SCHR
F/94 CARC, MUTA, SCHR
F/94
F/94 CARC, DEVEL, MUTA,
NEURO, REPRO, SCHR
F/94
F/94
F/94 i
F/94
F/94
F/94
F/94
F/94 MUTA
                                                                          35

-------
CAS No.
   5255-75-4

   5493-45-8


   6178-32-1

   7195-45-1

   7328-97-4


   7422-52-8


   7665-72-7

  13236-02-7

  13561-08-5

  14228-73-0


  15965-99-8

  16245-97-9

  17557-23-2

  17963-04-1
        Chemical Name
Nitrophenyl glycidyl ether, p-

Diglycidyt ester of hexahydro-
phthalic acid

p-Nonylphenyl glycidyl ether

Diglycidyl ester of phthalic acid

1,1,2,2-Tetra(p-hydroxyphenyl)-
ethane tetraglycidyl ether

3-[Bis(trimethylsiloxy)methyl)-
propyl glycidyl ether

Butyl glycidyl ether, tert-

Glycerol triglycidyl ether

Diglycidylphenyl glycidyl ether, 2,6-

Bis (glycidy loxy methyl)
cyclohexane, 1,4-

Hexadecyl glycidyl  ether

Octadecyl glycidyl ether, n-

Neopentyl glycol diglycidyl ether

3-(Dimethylethoxysilyl)propyl
glycidyl ether
 1992 Master Testing List

            Chemicals

              Yr
Source    Added   Status
Heatth
Testing Endpoints

       Environ
Fate
GlyckJol
ITC/3
ITC/3
ITC/3
ITC/3
ITC/3
ITC/3
ITC/ 3
ITC/3
ITC/3
ITC/3
ITC/3
ITC/3
ITC/3
ITC/3
I
& Derivatives, continued
92
92
92
92
92
92
92
92
92
92
92
92
92
92
F/94
F/94 CARC, MUTA, SCHR
F/94
F/94
F/94
F/94
F/94 SCHR
F/94
F/94
F/94
F/94
F/94
F/94 CARC, SCHR
F/94
                                                                         36

-------
CAS No.
  20217-01-0

  22421-59-6


  26447-14-3


  26761-45-5

  32568-89-1


  35243-89-1

  38304-52-8


  38954-75-5

  54208-63-8

  60501-41-9

  61578-04-9

  67786-03-2


  68081-84-5

  68134-06-5
        Chemical Name
Dibromophenyl glycidyl ether, 2,4-

Dibromo-4-methylphenyl glycidyl
ether, 2,6-

Cresyl glycidyl ether (mixed
isomers)

Glycidyl ester of neodecanoic acid

3-(2-Glycidyloxypropyl)-1-glycidol-
5,5-dimethylhydantoin

Oibromopropyl glycidyl ether, 1,2-

1,3-Bis(5,5-dimethyl-1 -glycidyl-
hydantoin-3-yl)-2-glycidyloxypropane

Tetradecyl glycidyl ether

Bisphenol F diglycidyl ether

Oleyl glycidyl ether

Cumylphenyl  glycidyl ether, p-

[Bis(4-glycidyloxyphenyl)]-(2-
glycidyl-oxyphenyOmethane

Alkyl (Ci0-C16) glycidyl ether

Dimethylbutyl glycidyl ether, 1,3-
 1992 Master Testing List

            Chemicals

              Yr
Source    Added   Status
Health
1 Testing End points

       Environ
Fate
GtycttolS
ITC/3
ITC/3
ITC/3
ITC/3
ITC/3
ITC/3
ITC/3
ITC/3
ITC/3
ITC/3
ITC/3
ITC/3
ITC/3
ITC/3
iDerival
92
92
92
92
92
92
92
92
92
92
92
92
92
92
iv6s* Continued
F/94
F/94
F/94
F/94 DEVEL, MUTA, NEURO, SCHR
F/94
F/94
F/94
F/94
F/94
F/94
F/94
F/94
F/94 SCHR
F/94
                                                                         37

-------
                                                           1992 Master Testing List

                                                                      Chemicals
CAS No.
  68134-07-6

  68517-O2-2


  68609-96-1

  68609-97-2

  68959-23-9


  68987-80-4

  69155-42-6


  71033-08-4


  71808-64-5


  72319-24-5


  74398-71-3


  75150-13-9
        Chemical Name
Methylheptyl glycidyl ether, 6-

Tris(4-hydroxyphenyl)propane-
triglycidyl ether

Alky I (C8-C10) glycidyl ether

Alkyl (C12-Ci4.) glycidyl ether

Hexanetriol triglycidyl ether,
1,2,6-

Alkyl (C6-C12) fllycidyl ether

1,1,1,3,5,7,7.7-Octamethyl-3,5-
bis(6,7-epoxy-4-oxaheptyl) tetra siloxane

2,2-Bislp-2-glycidyloxy-3-
butoxypropyloxyl-phenyllpropane

Dimethoxysilane, (3-glycidoxy-
propylKS-chloropropyl)-

2,2'-l(1-Methylethylidene)bis[4.1-
phenyleneoxy-3,1 -propanedioxy-

1,2,3-Propanetriyl ester of 12-
(oxiranylmethoxy)-9-octadecanoic acid

2,4-Dibromo-6-methylphenyl
glycidyl ether
Source
Glycklol
ITC/3
ITC/3
ITC/3
ITC/3
ITC/3
ITC/3
ITC/3
ITC/3
ITC/3
ITC/3
ITC/3
Yr
Added
«t\* mm ir^ *'
Denvftt
92
92
92
92
92
92
92
92
92
92
92
• i esung enuponnB
Status , Health Envfron Fate
I
* _-lu_ -1. .. *• < _fc
wt&t Continuea
F/94
F/94
F/94 REPRO, SCHR
F/94 DEVEL, MUTA, NEURO, SCHR
F/94
F/94
F/94
F/94
F/94
F/94
F/94
ITC/3
92
F/94       DEVEL, MUTA, NEURO, SCHR
                                                                          38

-------
CAS No.
  37853-59-1
      71-55-6

     120-82-1

     141-79-7

    1309-64-4

      95-54-5
       Chemical Name
   1163-19-5     Decabromodiphenyl ether
   3194-55-6     Hexabromocyclododecane
  32534-81-9     Pentabromodiphenyl ether
  32536-52-0     Octabromodiphenyl ether
Ethane, 1,2-bis{2,4.6-
tribromophenoxyl-
Trichloroethane, 1,1,1-

Trichlorobenzene, 1,2,4-

Mesityl oxide

Antimony trioxide

Phenylenediamine, ortho-
 1992 Master Testing List

           Chemicals


             Yf
Source   Added   Status
Heahh
Testing Endpotnts

      Environ
Fate
Bfunrinated name Retmianta
ITC/25 90 F/93
ITC/25 90 F/93
ITC/25 90 F/93
ITC/25 90 F/93
ITC/25 90 F/93
Other fTC Chemicals
ITC/2 90 T/92 .
ITC/3 90 T/94
ITC/ 4 90 T/92
ITC/4 90 T/93
ITC/ 6 90 T/92

CHR, DEVEL, MUTA,
NEURO, REPRO
CARC, CHR, DEVEL, MUTA,
NEURO, REPRO
CARC, CHR, DEVEL, MUTA,
NEURO, REPRO
CARC, CHR, DEVEL, MUTA,
NEURO, REPRO
CARC, CHR, DEVEL, MUTA,
NEURO, REPRO

DNEURO, NEURO, MUTA
CARC
SIDS
EPID
NEURO
]
ACUTE, CHR, BIOC, DEGR,
OTHR MONIT, PCHM,
TSPT
ACUTE, CHR, BIOC, DEGR,
OTHR PCHM, TSPT
ACUTE, CHR, BIOC, DEGR,
OTHR MONIT, PCHM,
TSPT
ACUTE, CHR, BIOC, DEGR,
OTHR MONIT, PCHM,
TSPT
ACUTE, CHR, BIOC, DEGR,
OTHR MONIT, PCHM,
TSPT





ACUTE, CHR TSPT
                                                                     39

-------
                                                        1992 Master Testing List
                                                                  Chemicals
CAS No.
     106-50-3

     108-45-2

      75-02-5

      75-38-7

   1000-82-4

   9011-05-6


  68611-64-3

  97380-66-3

        None


     110-82-7


     126-73-8


     128-39-2

      96-29-7


      67-63-0
       CnoflMCfll Mains
Phenylenediamine, para-

Phenylenediamine, meta-

Vinyl fluoride

Vinylidene fluoride

Methylolurea

Urea-formaldehyde resins/
formaldehyde

Urea-formaldehyde resins

Urea-formaldehyde resins

Commercial Hexane


Cyclohexane


Tributyl phosphate


Di-tert-butylphenol

Methyl ethyl ketoxime


Isopropanol

Source
OttwrT
ITC/6
ITC/6
ITC/7
ITC/7
ITC/12
ITC/12
ITC/1 2
ITC/12
ITC/1 6
ITC/1 7
ITC/1 8
ITC/1 8
ITC/1 9
Yr
Added
M* fHijmmAn
1 \? ^fWlllH*
90
90
90
90
90
90
90
90
90
90
90
90
90

Status
mtm jJL.iii.rtim
art iconunu
T/92
T/92
T/93
T/93
A/93
A/93
A/93
A/93
T/93
F/94
T/94
T/93
T/94
, lesnng enaponrcs
Health Environ Fate
I
Ml)
NEURO ACUTE, CHR TSPT
NEURO, MUTA ACUTE, CHR TSPT
CARC, MUTA
CARC, MUTA, REPRO
ACUTE, SCHR MONIT
ACUTE, SCHR MONIT
ACUTE, SCHR MONIT
ACUTE, SCHR MONIT
CARC, DEVEL, MUTA,
NEURO, PK, REPRO, SCHR
ACUTE, CARC, DEVEL, MUTA
NEURO, PK, REPRO, SCHR
CARC, DEVEL, MUTA, ; ACUTE, CHR PCHM, TSPT
NEURO, OTHR, PK, REPRO
ACUTE, CHR DEGR, TSPT
CARC, NEURO, DEVEL
                               REPRO, MUTA

ITC/20       90       T/94      CARC, MUTA, SCHR, PK,
                               DEVEL, REPRO, NEURO
                                                                       40

-------
1992 Master Testing List
       Chemicals
SNo.
1634-04-4
822-06-0
4170-30-3
115-96-8
79-10-7
98-86-2
100-40-3
108-95-2
121-69-7
141-78-6
143-33-9
576-26-1
Chemical Nairn
Methyl tert-butyl ether
Hexamethylene diisocyanate, 1,6-
Crotonaldehyde
Tris(2-chloroethyl)phosphate
Acrylic acid
Acetophenone
Vinylcyclohexene, 4-
Phenol
Dimethylaniline, N,N-
Ethyl acetate
Sodium cyanide
Dimethylphenol, 2,6-
Source
Othw
ITC/20
ITC/22
ITC/22
ITC/23
ITC/27
ITC/27
ITC/27
ITC/27
ITC/27
ITC/27
ITC/27
ITC/27
Yr
Added
ITC ciwnifc
90
90
90
90
92
92
92
92
92
92
92
92
Status
en iconanu
T/92
F/93
T/92
F/93
T/94
S/93
T/94
S/93
S/93
S/93
T/94
S/93
lesung tnopotms
Health Environ Fata
I
Ml}
CARC, MUTA, NEURO,
DEVEL, REPRO
CARC, DEVEL, MUTA, PCHM
NEURO, PK, REPRO
CHR
SIDS
DEVEL, PK, REPRO
DEVEL, MUTA, NEURO, PK,
REPRO, SCHR
MUTA, PK, SCHR TSPT
NEURO, PK, REPRO, SCHR
DEVEL, MUTA, NEURO, PK, ACUTE, CHR DEGR
REPRO, SCHR
DEVEL, MUTA, NEURO,
REPRO, CARC
ACUTE, CHR TSPT
DEVEL, MUTA ACUTE, CHR DEGR, TSPT
NEURO, REPRO
          41

-------
CAS No.
       Chemical Nairn
                                                      1992 Master Testing List
                                                                Chemicals
Sourca
  Yr
Added   Status
                 Heahh
                     Testing Endpohits

                    _    Environ
  Fate
                                                      Other ITC Chemicals (continued)
     67-64-1      Acetone

     71-36-3      Butanol, 1-

     78-83-1      Isobutyl alcohol

    103-23-1      Di(2-ethylhexyl) adipate

    108-98-5      Thiophenol


    120-61-6      Dimethyl terephthalate
     75-35-4     Dichloroethylene, 1,1-
ITC/28
ITC/28
ITC/28
ITC/28
ITC/28
92
92
92
92
92
S/93
S/93
S/93
S/93
S/93
                                    ITC/28
            92
          S/93
                                                         Office of Air and Radiation
                                    OAR
            90
          S/94
          REPRO

          REPRO

          CARC, DEVEL, PK, REPRO

          DEVEL, NEURO, REPRO

          CARC, DEVEL, MUTA,
          NEURO, PK, REPRO

          DEVEL, NEURO, REPRO
          CARC, PK
                           CHR

                           ACUTE.CHR


                           ACUTE, CHR
DEGR, PCHM

DEGR, TSPT
PCHM

DEGR
                                                   Office of Pollution Prevention and Toxics
     50-00-0

  84852-15-3

 142844-00-6
Formaldehyde

Nonylphenol

Refractory Ceramic Fibers
 OPPT

 OPPT

 OPPT
  92

  92

  92
A/93

T/93

T/92
Emissions Characterization
Exposure Characterization
                           CHR, ACUTE
PCHM, BIOC
                                                                    42

-------
CAS No.
   57-10-3


   74-97-5


   75-15-0

   79-31-2


   95-80-7


  100-21-0


  104-76-7


  107-13-1


  111-11-5


  120-80-9


  123-30-8


27193-86-8
Chemical Name
Hexadecanoic acid

Bromochloromethane

Carbon disulfide

Methylpropanoic acid, 2-

Diaminotoluene, 2,4-

Terephthalic acid

Ethylhexanol,  2-

Acrylonitrile

Octanoic acid, methyl ester

Hydroxyphenol, o-

Aminophenol,  p-

Dodecylphenol
   60-29-7     Diethyl ether

   67-64-1     Acetone

   71-36-3     Butanol,  1-
 1992 Master Testing List

           Chemicals


             Yr
Source   Added  Status
                                                                                          Health
                                                                                         = Testing Endpoints

                                                                                                Environ
Fate
I
eVeJopmental and Reproductive Effects
OPPT/D
OPPT/D
OPPT/D
OPPT/D
OPPT/D
OPPT/D
OPPT/D
OPPT/D
OPPT/D
OPPT/D
OPPT/D
OPPT/D
91
91
91
91
91
91
91
91
91
91
91
91
Neurotoxfccfogic
OPPT/N
OPPT/N
OPPT/N
91
91
91
F/93
F/92
F/93
F/93
F/93
F/93
F/93
F/93
F/93
F/93
F/93
F/93
Effects
F/93
F/93
F/93
DEVEL
REPRO
REPRO
DEVEL
DEVEL, REPRO
REPRO
DEVEL
DEVEL
DEVEL
DEVEL
DEVEL
DEVEL

NEURO
NEURO
NEURO
                                                                   43

-------
CAS No.
     78-83-1

    108-10-1

    109-99-9

    110-80-5

    123-86-4

    141-78-6

    628-63-7
     79-94-7

     87-10-5

    118-75-2

    118-79-6

   1163-19-5

   4162-45-2

  25327-89-3

  32534-81-9
        Chemical Name
Isobutyl alcohol

Methyl isobutyl ketone

Tetrahydrofuran

Ethoxyethanol, 2-

Butyl acetate, n-

Ethyl acetate

Amyl acetate, n-
Tetrabromobisphenol-A

Tribromosalicylanilide, 3,4'5-

Chloranil

2,4,6-Tribromophenol

Decabromodiphenyloxide

Tetrabromobisphenol-A-bis(ethoxyla

Tetrabromobisphenol-A, ally! ether

Pentabromodiphenylether
 1992 Master Testing List

           Chemicals


             Yr
Source   Added  Status
Health
; Testing Endpotnts

       Environ
Fate
Neurotoxicotogic Effect* (contimied)
OPPT/N 91
OPPT/N 91
OPPT/N 91
OPPT/N 91
OPPT/N 91
OPPT/N 91
OPPT/N 91
F/93 NEURO
F/93 NEURO
F/93 NEURO
F/93 NEURO
F/93 NEURO
F/93 NEURO
F/93 NEURO







Pofyhalogenated Dibenzo-p-Dk>xins/Dibenzofurans*
OPPT/DF 90
OPPT/DF 90
OPPT/DF 90
OPPT/DF 90
OPPT/DF 90
OPPT/DF 90
OPPT/DF 90
OPPT/DF 90
T/93
T/95
T/93
T/93
T/92
T/93
T/93
T/93
OTHER
OTHER
OTHER
OTHER
OTHER
OTHER
OTHER
OTHER
                                                                      44

-------
CAS No.
  32536-52-0

  37853-59-1
     74-87-3

     75-00-3

     75-34-3

     75-69-4

     79-00-5

     79-34-5

    103-65-1

    108-67-8
        Chemical Name
Octabromodiphenyloxide

Bis(tribromophenoxy)-ethane,  1,2-
Chloromethane

Chloroethane

Dichloroethane,  1,1-

Fluorotrichloromethane

Trichloroethane, 1,1,2-

Tetrachloroethane, 1,1,2,2-

Propylbenzene, n-

Trimethylbenzene,  1,3,5-
 1992 Master Testing List

            Chemicals


             Yr
Source   Added  Status
Health
Testing Endpoints

      Environ
Fate
I—.* flifet^n-,
tea uiDeru
OPPT/DF
OPPT/DF

OW
OW
OW
OW
OW
OW
OW
OW
•Jv dmi Itifhw^i
CO*p-vlH}XM1
90
90
Office of
90
90
90
90
90
90
90
90
!
a/Dibciuururuii6 (contnued)
T/92 OTHER
T/95 OTHER
Water
F/93 PCHR, SCHR
F/93 PCHR, SCHR
F/93 PCHR, SCHR
F/93 PCHR, SCHR
F/93 PCHR, SCHR
F/93 PCHR, SCHR
F/93 PCHR, SCHR
F/93 PCHR, SCHR
                                                                      45

-------
                                    1992 Master Testing List
                   Organization for Economic Cooperation and Development (OECDJ^

                                     Screening Information Data Set
  CAS No.
Chemicaf Name
Ctry/Phase
        NOTE:  As of November 1992, testing is underway or completed for the chemicals in
                Phase I; the chemicals in Phases 2 and 3 are scheduled for initiation of testing
                in 1993.

                                           OECD PHASE 1
 59-67-6        Nicotlnic acid

 70-55-3        Benzenesulfonamlde, 4-methyl-

 75-54-7        Silane. dichloromethyl-

 75-77-4        Silane, chlorotrimethyl-

 75-78-5        Silane, dichlorodimethyl-

 75-79-6        Silane, trichloromethyl-

 75-91-2        Hydroperoxlde, 1,1-dimethylethyl-

 77-99-6        Propanediol, 2-ethyl-2-(hydroxymethyl)-, 1,3-

 78-40-0        Triethyl phosphate

 78-84-2        Propanal, 2-methyl-

 79-92-5        Camphene

 88-72-2        Nitrotoluene, 2-

 99-09-2        Nitroaniline, 3-

107-01-7        Butene, 2-

112-53-8        Oodecanol, 1-

112-92-5        Octadecanol, 1-

123-38-6        Propanal

126-30-7        Propanediol, 2,2-dimethyl-, 1,3-

126-58-9        Propanediol, 2.2'-[oxybis-(methylene)]-
                bls [2-(hydroxymethyl

128-39-2        Di-tert-butylphenol

147-14-8        C.I. Pigment Blue 15
 Yr
Added
CH/1
JP/1
FR/1
US/1
FR/1
FR/1
NL/1
JP/1
DE/1
US/1
DE/1
SE/1
JP/1
NL/1
DK/1
DK/1
US/1
JP/1
SE/1
CH/1
JP/1
90
90
90
90
90
90
90
90
92
90
92
90
90
90
90
90
90
90
90
90
90
                                                   46

-------
 CAS No.



  156-43-4

  294-62-2

  504-60-9

  536-90-3

  556-67-2

  584-03-2

  693-23-2

 1758-73-2

 2402-79-1

 2431-50-7

 3209-22-1

 6386-38-5



 6419-19-8

25265-77-4

29171-20-8

29590-42-9

37971-36-1
   57-13-6

   74-85-1

   75-86-5

   76-03-9

   78-93-3

   78-97-7

   79-11-8
                    1992 Master Testing List

   Organization for Economic Cooperation and Development (OECD)


                    Screening Information Data Set


             Chemical Name



Benzenamine, 4-ethoxy-

Cyclododecane

Pentadiene, 1,3-

Benzenamine, 3-methoxy-

Octamethylcydotetrasiloxane

Butanediol, 1.2-

Dodecanadioic add

Methanesulfmic add, amlnolmlno-

Tetrachloropyridine, 2,3,5,6-

2,3,4-trichlorobut-1 -ene

Benzene, 1,2-dichloro-3-nitro-

Benzenepropanoic add, 3,5-bls(1,1-di-
methylethyl)-4-hydroxy

Phosphoric add, [Nitrilotris-(methylene)]tris-

Propanolc add, 2-methyl-, monoester

6-Octen-1-yn-3-ol, 3.7-dimethyl-

Propenoic add, isooctyl ester, 2-

Butanetricarboxylic add,  1,2.4-
                                              OECD PHASE 2
Urea

Ethylene

Acetone cyanhydrin

Trldiloroacetic add

Methyl ethyl ketone

Propanentolle, 2-hydroxy-

Chloroacetic add
y/Phase
jp/1
FR/1
US/1
JP/1
US/1
JP/1
US/1 .
AT/1
US/1
DE/1
JP/1
CH/1
UK/1
US/1
CH/1
US/1
DE/1
FI/2
NO/2
UK/2
DE/2
US/2
JP/2
SE/2
Yr
Added
90
90
90
90
90
90
90
90
90
90
90
90
90
90
90
90
90
92
92
92
92
92
92
92
                                                      47

-------
                                      1992 Master Testing  List
                ,   '  Organization for Economic Cooperation and  Development (OECD)
                                      Screening information Data Set

CAS No.                     Chemical Name

   80-43-3         Dicumyl peroxide
   95-48-7         o-Cresol
   95-73-8         2,4-DicMorotokiene
   97-65-4         Butanediolc add, methylene-
   98-56-6         Benzene, 1-diloro-4-(trifluoromethyl)-
  100-21-0         Terephthalic add
  104-94-9         Aniline, 4-methoxy-
  105-05-5         Benzene, 1,4-diethyl-
  105-76-0         Maleic add, dibutyl ester
  106-98-9         Butene-1
  107-21-1         Ethylene gJycol
  107-66-4         Phosphoric add, dibutyl ester
  108-01-0         Dimethylaminoethanol
  108-10-1         Methyl isobutyl ketone
  108-24-7         Acetic anhydride
  108-78-1         Melamine
  108-83-8         Heptanone, 2.6-dimethyl-, 4-
  108-99-6         Pyridine, 3-methyl-
  109-55-7         1 -Amlno-3-dimethylamIno propane
  109-69-3         Chlorobutane, 1-
  111 -40-0         Diethylenetriamine
  111 -42-2         Dtethanolamine
  111-66-0         1-Octane
  112-18-5         N,N-Dimethyldodecylamine
  112-41-4         1-Dodecene
  115-18-4         3-Buten-2-ol, 2-methyl-
y/Phase
BE/2
FR/2 US/2
JP/2
FR/2
IT/2 US/2
IT/2
DE/2
JP/2
AT/2
CA/2
CA/2
JP/2
UK/2
US/2
CA/2
AT/2
FR/2
BE/2
DE/2
JP/2
NL/2
UK/2
US/2
DE/2
US/2
CH/2
Yr
Added
92
92
92
92
92
92
92
92
90
92
92
92
92
92
92
92
90
90
92
92
92
92
92
92
92
92
                                                     48

-------
                                       1992 Master Testing List



                      Organization for Economic Cooperation and Development {OEGDJ




                                       Screening Information Data Set






 CAS No.                     Chemical Name






   115-19-5         3-Butyn-2-ol, 2-methyl-



   120-61-6         Dimethyl terephthalate



   121-14-2       -Benzene. 1
-------
CAS No.
iiWii
28629-66-5        Phosphorodithioic add, 0,O-diisooctyl





                                               OECDPHASE3






    50-81-7        L-Ascorbic add



    75-98-9        2,2-dimethyl-propanoic add



    79-94-7        Tetrabromobisphenol A




    80-05-7        Bisphenol A



    81-11-8        Benzenesulfonlc add, 2,2'-(1,2-ethenedi-



    82-45-1        1-Aminoanthraquinone



    89-61-2        Benzene, 1,4-dichloro-2-nitro-



    92-70-6        2-Hydroxy-3-naphthoic add



  100-52-7        Benzaldehyde



  101-54-2        1,4-Benzenediamine, N-phenyl-



  101-68-8        Methylenediphenyl dHsocyanate.4,4'-



  101-72-4        Benzenediamine. N-(1-methylethyl)-N'-phenyl-, 1,4-



  102-01-2        Acetoacetanilide



  102-71-6        Triethanolamlne



  104-76-7        Ethylhexanol, 2-




  104-90-5        2-Picoline, 5-ethyl-ethoxy]-




  105-99-7        Di-butyl adipate



  106-42-3        p-Xylene



  107-22-2        Glyoxal



  107-64-2        1-Octadecanamlnium, N,N-dimethyl-N-octad




  108-44-1        m-Toluldine



  108-89-4        Pyridine. 4-methyl-



  108-94-1        Cydohexanone
                                                                              US/2
                                                                                                   Addeo
                                                           92
UK/3
NL/3
US/3
CH/3
JP/3
JP/3
JP/3
DE/3
NU3
DE/3
US/3
UK/3
US/3
UK/3
SE/3 US/3
CH/3
JP/3
IT/3
FR/3
DE/3
JP/3
BE/3
CA/3
92
92
92
92
92
92
92
92
92
92
92
90
92
92
92
92
92
92
92
92
92
90
92
                                                        50

-------
                                      1992 Master Testing List
                                                                         *v •.•.*•
                     Organization for Economic Cooperation and Development (OECD)


                                      Screening Information Data Set



CAS No*                     Chemical Name



  109-06-8        Pyrldine, 2-methyl-

  110-27-0        Isopropyl myrlstate


  110-30-5        OctadecanamMe,N,N'-1^2-ethanediylbis-

  110-91-8        Morpholine


  111 -46-6        Diathylane glycol

  111-69-3        1,4-Dicyanobutane

  112-24-3        Triethylene tatramine

  112-35-6        Ethanol, 2-[2-(2-mathoxy-athoxy)

  1T2-50-5        Triethylene glycol. monoethyl ether

  112-72-1         1 -Tetradecanol


  112-90-3        9-Octadecen-1-amine. (Z\-

  115-11-7        2-Methylpropene


  116-15-4        Hexafluoropropene

  118-69-4        2.6-Dlchlorotoluene

  120-78-5        Benzthlazole disulflde

  121-33-5        Vanillin

  123-01 -3        Dodecylbenzene

  123-31-9         Hydroquinone

  123-72-8        Butyraldehyde

  123-77-3         Diazenedicarfaoxamlde

  127-19-5        Dimethylacetamide

  135-19-3        2-Napththol

  140-66-9         Phenol, 4-(1.1,3,3-tetramethylbirtyl)-

  141-79-7         Mesrtyl oxide

  512-56-1         Phosphoric add, trimethyl ester

  611 -06-3         Benzene, 2,4-dichloro-l -nitro-
ry/Phase 4
BE/3 •"' ••-"'.:•• ' •
DE/3
US/3
UK/3
CA/3
FR/3
DE/3
US/3
US/3
US/3
US/3
FR/3
IT/3US/3
JP/3
DE/3
NO/3
US/3
US/3
US/3
DE/3
IT/3
DE/3
CH/3
US/3
JP/3
JP/3
Yr
Added
90
92
92
92
92
92
92
92
92
92
92
92
90
92
92
92
92
92
92
92
92
92
92
92
92
92
                                                     51

-------
                                        1992 Master Testing List

                       Organization for Economic Cooperation and Development (OECDJ

                                        Screening Information Data Set
CAS No.                     Chemical Name
 -' 623-91-6      .  2-Butenediolc add (E)-. diethyl ester

    629-11-8        Hexamethylene glycol

    ,872-05-9-      Deoene, n-

   1163-19-5        Decabromodiphenyl ether

   1854-26-8        2-lmldazolldinone, 4.5-dihydroxy-1,3-bis

   1879-09-0        6-tart-butyl-2,4-xylenol

   2524-03-0        Dimethyl chlorothiophosphate

   2524-04-1        Diethyl chlorothiophosphate

, ,-• 4979-32-2        N,N-dicydohexyl-2-benzothlazolesulfenam

!.:,- 5392-40-5        Cltral

 ;: 6742-54-7        Benzene, undecyl

  13674-84-5        2-propanol,1-chloro-. phosphate (3:1)
                                                                        Ctry/Phase
  Yr
Added
JP/3
DE/3
FI/3
US/3
DE/3
JP/3
US/3
US/3
JP/3
JP/3
US/3
US/3
92
92
90
90
92
92
92
92
92
92
92
92
                                                       52

-------
                       1992 Master Testing List
                             ENDNOTES

                                                     J,  r>

1.     "Glycidol and its derivatives" is a category comprised of
66 specific chemicals.  To understand the proposed testing
requirements for this category, refer to "Glycidol and its
Derivatives Category; Proposed Test Rule with Reporting and
Recordkeeping Requirements" (56 FR 57144; November 7, 1991).
Chemical testing end points, which are the subject of, the
proposal, are shown on the MTL.  EPA will evaluate public
comments on the proposal and determine the further testing that
is necessary for the members of this category.
2.     A test rule entitled "Polyhalogenated Dibenzo-p-
Dioxins/Dibenzofurans; Testing and Reporting Requirements;*" Final
Rule" (52 FR 21412, June 5, 1987) requires analytical testing for
dioxin/furan contamination of the chemicals listed under this
source.
3.     Based on the OECD "Working List of Priority Chemicals",
October 19, 1992.
                                53

-------