METHOD 310
Determination of Volatile Organic Compounds (VOC) in Consumer
Products and Reactive Organic Compounds (ROC) in Aerosol
Coating Products
(Including Appendix A)
Adopted: September 25, 1997
Amended: September 3, 1999
Amended: July 18, 2001
Amended: May 5, 2005
Amended: August 6, 2010
Amended: September 29, 2011
Amended: August 1, 2014
Amended: May 25, 2018
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METHOD 310
DETERMINATION OF VOLATILE ORGANIC COMPOUNDS (VOC) IN
CONSUMER PRODUCTS AND REACTIVE ORGANIC COMPOUNDS
(ROC) IN AEROSOL COATING PRODUCTS
(Including Appendix A)
1 APPLICABILITY
1.1 This method (Method 310) applies to the determination of the percent by weight
of:
(1) volatile organic compounds (VOC) in consumer products, antiperspirant and
deodorant products, as those terms are defined in Title 17, California Code of
Regulations (CCR), Division 3, Chapter 1, Subchapter 8.5 (Consumer Products),
commencing with sections 94500 and 94508, and
(2) low vapor pressure-volatile organic compounds (LVP-VOC) as that term is
defined in section 94508(a).
1.2 Method 310 applies to the determination of product weighted maximum
incremental reactivity (PWMIR) of aerosol coating products, as that term is
defined in Title 17, CCR, Consumer Products section 94521.
1.3 Method 310 determines the total volatile material in a product and the presence
of any compounds prohibited by CARB regulations ("prohibited compounds").
Components of the product that do not meet the definition of a VOC or are
exempted by CARB regulations for a specific product category ("exempt
compounds") are subtracted from the total volatile material to determine the final
VOC content for the product. Method 310 is also used to determine the percent
by weight of the reactive organic compounds (ROC).
1.4 Method 310 does not apply to the determination of the composition or
concentration of fragrance components in products.
1.5 The term "Executive Officer" as used in this document means the Executive
Officer of the Air Resources Board or his or her authorized representative.
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2 REFERENCE METHODS
Method 310 incorporates by reference the following ASTM International (ASTM),
National Institute for Occupational Safety and Health (NIOSH), and United States
Environmental Protection Agency (US EPA) analytical test methods:
2.1 ASTM D2369-01, Standard Test Method for Volatile Content of Coatings
(January 10, 2001).
2.2 ASTM D1426-98, Standard Test Methods for Ammonia Nitrogen in Water
(December 10, 1998).
2.3 ASTM D4017-96a, Standard Test Method for Water in Paints and Paint Materials
by the Karl Fisher Method (July 10, 1996).
2.4 ASTM D3792-99, Standard Test Method for Water Content of Coatings by Direct
Injection Into a Gas Chromatograph (May 10, 1999).
2.5 ASTM D859-00, Standard Test Method for Silica in Water (June 10, 2000).
2.6 ASTM D3074-94, Standard Test Methods for Pressure in Metal Aerosol
Containers (November 15, 1994), with the modifications found in Appendix A to
this Method 310.
2.7 ASTM D3063-94, Standard Test Method for Pressure in Glass Aerosol Bottles
(November 15, 1994), with the modifications found in Appendix A to this Method
310.
2.8 ASTM D3064-97, Standard Terminology Relating to Aerosol Products
(September 10, 1997).
2.9 NIOSH Method 1400, Alcohols I, NIOSH Manual of Analytical Methods, Fourth
Edition, (August 1994).
2.10 US EPA Method 8240B, Revision 2, September 1994, Final Update IIA to the
Third Edition of the Test Methods for Evaluating Solid Waste, Physical/Chemical
Methods, Volatile Organic Compounds by Gas Chromatography/Mass
Spectrometry (GC/MS), EPA publication SW-846.
2.11 US EPA Method 8260B, Revision 2, December 1996, Final Update III to the
Third Edition of the Test Methods for Evaluating Solid Waste, Physical/Chemical
Methods, Volatile Organic Compounds by Gas Chromatography/Mass
Spectrometry (GC/MS), EPA publication SW-846.
2.12 US EPA Method 24, Determination of Volatile Matter Content, Water Content,
Density, Volume Solids, and Weight Solids of Surface Coatings, Title 40 Code of
Federal Regulations (CFR) Part 60, Appendix A, (July 1, 1996).
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2.13 US EPA Method 24A, Determination of Volatile Matter Content and Density of
Printing Inks and Related Coatings, Title 40 CFR Part 60, Appendix A, (July 1,
1994).
2.14 US EPA Method 18, Measurement of Gaseous Organic Compound Emissions by
Gas Chromatography, Title 40 CFR Part 60, Appendix A, (July 1, 1996).
2.15 US EPA Method 300.7, Dissolved Sodium, Ammonium, Potassium, Magnesium,
and Calcium in Wet Deposition by Chemically Suppressed Ion Chromatography,
EPA Report # 600/4-86-024, (March 1, 1986).
2.16 ASTM D86-01, Standard Test Method for Distillation of Petroleum Products at
Atmospheric Pressure (August 10, 2001).
2.17 ASTM D850-00, Standard Test Method for Distillation of Industrial Aromatic
Hydrocarbons and Related Materials (December 10, 2000).
2.18 ASTM D1078-01, Standard Test Method for Distillation Range of Volatile Organic
Liquids (June 10, 2001).
2.19 ASTM D2879-97, Standard Test Method for Vapor Pressure-Temperature
Relationship and Initial Decomposition Temperature of Liquids by Isoteniscope
(April 10, 1997).
2.20 ASTM D2887-01, Standard Test Method for Boiling Range Distribution of
Petroleum Fractions by Gas Chromatography (May 10, 2001).
2.21 ASTM E1719-97, Standard Test Method for Vapor Pressure of Liquids by
Ebulliometry (March 10, 1997).
2.22 ASTM D3257-06, Standard Test Methods for Aromatics in Mineral Spirits by Gas
Chromatography (April 1, 2006).
2.23 ASTM D3606-07, Standard Test Method for Determination of Benzene and
Toluene in Finished Motor and Aviation Gasoline by Gas Chromatography
(November 1, 2007).
2.24 ASTM D3710-95(2004), Standard Test Method for Boiling Range Distribution of
Gasoline and Gasoline Fractions by Gas Chromatography (November 1, 2004).
2.25 ASTM D5443-04, Standard Test Method for Paraffin, Naphthene, and Aromatic
Hydrocarbon Type Analysis in Petroleum Distillates Through 200°C by Multi-
Dimensional Gas Chromatography (November 1, 2004).
2.26 ASTM D5580-02(2007), Standard Test Method for Determination of Benzene,
Toluene, Ethylbenzene, p/m-Xylene, o-Xylene, C9 and Heavier Aromatics, and
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Total Aromatics in Finished Gasoline by Gas Chromatography (November 1,
2007).
2.27 ASTM E1782-08, Standard Test Method for Determining Vapor Pressure by
Thermal Analysis (March 1, 2008).
2.28 US EPA Method 602, Purgeable Aromatics, Title 40 CFR 136 Appendix A,
Method for Organic Chemical Analysis of Municipal and Industrial Wastewater
(July 1, 2007).
2.29 US EPA Method 625, Base/Neutrals and Acids, Title 40 CFR 136 Appendix A,
Method for Organic Chemical Analysis of Municipal and Industrial Wastewater
(July 1, 2007).
2.30 US EPA Method 8015B, Revision 2, December 1996, Final Update III to the
Third Edition of the Test Methods for Evaluating Solid Waste, Physical/Chemical
Methods, Non-Halogenated Organics Using GC/FID, EPA publication SW-846.
2.31 US EPA Method 8020A, Revision 1, September 1994, Final Update II to the
Third Edition of the Test Methods for Evaluating Solid Waste, Physical/Chemical
Methods, Aromatic Volatile Organics by Gas Chromatography, EPA publication
SW-846.
2.32 US EPA Method 8270D, Revision 4, January 1998, Final Update IV to the Third
Edition of the Test Methods for Evaluating Solid Waste, Physical/Chemical
Methods, Semivolatile Organic Compounds by Gas Chromatography / Mass
Spectroscopy (GC/MS), EPA publication SW-846.
2.33 ASTM D5381 -93(2009), Standard Guide forX-Ray Fluorescence (XRF)
Spectroscopy of Pigments and Extenders (February 1, 2009).
2.34 ASTM D523-08, Standard Test Method for Specular Gloss (June 1, 2008).
2.35 ASTM D1613-06, Standard Test Method for Acidity in Volatile Solvents and
Chemical Intermediates Used in Paint, Varnish, Lacquer, and Related Products
(April 1, 2006).
2.36 ASTM D6730-01(2016), Standard Test Method for Determination of Individual
Components in Spark Ignition Engine Fuels by 100-Metre Capillary (with
Precolumn) High-Resolution Gas Chromatography, (April 1, 2016).
2.37 ASTM D4057-12, Standard Practice for Manual Sampling of Petroleum and
Petroleum Products, (December 1, 2012).
2.38 ASTM D4177-16e1, Standard Practice for Automatic Sampling of Petroleum and
Petroleum Products, (October 1, 2016).
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2.39 ASTM D4626-95(2015), Standard Practice for Calculation of Gas
Chromatographic Response Factors, (April 1, 2015).
2.40 ASTM E203-01, Standard Test Method for Water Using Volumetric Karl Fisher
Titration, (October 10, 2001).
3 TESTING TO DETERMINE VOC
3.1 Testing begins when the Executive Officer selects a product for analysis by
Method 310. The Executive Officer will maintain sample chain of custody
throughout the selection and analytical process.
3.2 Initial Testing of Aerosol Products
If the sample is an aerosol product, the aerosol propellant is separated from the
non-propellant portion of the product using ASTM D3074-94 (as modified in
Appendix A for metal aerosol container) or ASTM D3063-94 (as modified in
Appendix A for glass aerosol container). The propellant portion is analyzed for
exempt or prohibited compounds by using US EPA Method 18. The remaining
non-propellant portion of the product is then analyzed as specified in section 3.3.
3.3 Initial Testing of Non-Aerosol Products and the Non-Propellant Portion of Aerosol
Products
The non-aerosol product or non-propellant portion of an aerosol product is
analyzed to determine the total volatile material present in the sample and to
determine the presence of any exempt or prohibited compounds. This analysis is
conducted by performing the following tests:1
3.3.1 Gravimetric analysis of samples to determine the weight percent of total
volatile material, using US EPA Method 24, US EPA Method 24A, ASTM
D2369-01.
3.3.2 Determination of sample water content. For determination of water content
either ASTM D4017-96a (including ASTM E203-01), or ASTM D3792-99 may
be used, or results from both procedures may be averaged and that value
reported.
3.3.3 Determination of ammonium content using ASTM D1426-98 or US EPA
Method 300.7.
3.3.4 Determination of ketones and alcohol content using NIOSH Method 1400.
1 Alternate test methods may be used, as provided in section 7.0.
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3.3.5 Analysis of exempt and prohibited compounds, if present (US EPA Method
18, US EPA Method 8240B, US EPA Method 8260B, ASTM D859-00, NIOSH
Method 1400). Effective January 1, 2015, for non-aerosol "Multi-purpose
Solvent" and "Paint Thinner" products sold, supplied, offered for sale, or
manufactured for sale in the South Coast Air Quality Management District,
analysis of exempt and prohibited compounds shall include analysis for
methyl esters with 17 or more carbon atoms, if present.
3.3.6 If LVP-VOC status is claimed or the analysis indicates the presence of an
LVP-VOC component and the percent VOC is not in compliance, the
Executive Officer will request formulation data as specified in Section 3.4.2.
3.3.7 For low level VOC content samples, direct determination using US EPA
Method 18, US EPA Method 8240B, US EPA Method 8260B, ASTM D859-00,
NIOSH Method 1400.
3.3.8 For hydrocarbon compound content determination, US EPA Method 602, US
EPA SW-846 Method 8020A, US EPA Modified Method 8015, US EPA
Method 625, US EPA Method SW-846 Method 8270D, ASTM D5443-04,
ASTM D3257-06, ASTM D3710-95, ASTM D3606-07, ASTM D5580-02,
ASTM D6730-01 (2016), ASTM D4057-12, ASTM D4177-16e1, ASTM D4626-
95(2015).
3.4 Initial Determination of VOC Content
The Executive Officer will determine the VOC content pursuant to sections 3.2
and 3.3. Only those components with concentrations equal to or greater than 0.1
percent by weight will be reported.
3.4.1 Using the appropriate formula specified in section 4.0, the Executive Officer
will make an initial determination of whether the product meets the applicable
VOC standards specified in CARB regulations. If initial results show that the
product does not meet the applicable VOC standards, the Executive Officer
may perform additional testing to confirm the initial results.
3.4.2 If the results obtained under section 3.4.1 show that the product does not
meet the applicable VOC standards, the Executive Officer will request the
responsible party to supply product formulation data. The responsible party
shall supply the requested information. Information submitted to the CARB
Executive Officer may be claimed as confidential; such information will be
handled in accordance with the confidentiality procedures specified in Title
17, CCR, Division 3, Chapter 1, Subchapter 4 (Disclosure of Public Records),
sections 91000 to 91022.
3.4.3 If the information supplied by the responsible party shows that the product
does not meet the applicable VOC standards, then the Executive Officer will
take appropriate enforcement action.
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3.4.4 If the responsible party fails to provide formulation data as specified in section
3.4.2, the initial determination of VOC content under this section 3.4 shall
determine if the product is in compliance with the applicable VOC standards.
This determination may be used to establish a violation of CARB regulations.
3.5 Determination of the LVP-VOC status of compounds and mixtures. This section
does not apply to antiperspirants and deodorants or aerosol coating products.
Effective January 1, 2015, this section also does not apply to non-aerosol "Multi-
purpose Solvent" and "Paint Thinner" products sold, supplied, offered for sale, or
manufactured for sale in the South Coast Air Quality Management District. There
is no LVP-VOC exemption for these products.
3.5.1 Formulation data. If the vapor pressure is unknown, the following ASTM
methods may be used to determine the LVP-VOC status of compounds and
mixtures: ASTM D86-01 (August 10, 2001), ASTM D850-00 (December 10,
2000), ASTM D1078-01 (June 10, 2001), ASTM D2879-97 (April 10, 1997),
ASTM D2887-01 (May 10, 2001), and ASTM E1719-97 (March 10, 1997).
3.5.2 LVP-VOC status of "compounds" or "mixtures." The Executive Officer will test
a sample of the LVP-VOC used in the product formulation to determine the
boiling point for a compound or for a mixture. If the boiling point exceeds
216°C, the compound or mixture is an LVP-VOC. If the boiling point is less
than 216°C, then the weight percent of the mixture which boils above 216°C is
an LVP-VOC. The Executive Officer will use the nearest 1 percent distillation
cut that is greater than 216°C as determined under 3.5.1 to determine the
percentage of the mixture qualifying as an LVP-VOC.
3.6 Final Determination of VOC Content
If a product's compliance status is not satisfactorily resolved under sections 3.4
and 3.5, the Executive Officer will conduct further analyses and testing as
necessary to verify the formulation data.
3.6.1 If the accuracy of the supplied formulation data is verified and the product
sample is determined to meet the applicable VOC standards, then no
enforcement action for violation of the VOC standards will be taken.
3.6.2 If the Executive Officer is unable to verify the accuracy of the supplied
formulation data, then the Executive Officer will request the responsible party
to supply information to explain the discrepancy.
3.6.3 If there exists a discrepancy that cannot be resolved between the results of
Method 310 and the supplied formulation data, then the results of Method 310
shall take precedence over the supplied formulation data. The results of
Method 310 shall then determine if the product is in compliance with the
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applicable VOC standards, and may be used to establish a violation of CARB
regulations.
4 CALCULATION OF VOC CONTENT
This section specifies the procedure for determining the final VOC content of a
product, which is reported as percent by weight of VOC. Effective January 1, 2015,
for non-aerosol "Multi-purpose Solvent" and "Paint Thinner" products sold, supplied,
offered for sale, or manufactured for sale in the South Coast Air Quality
Management District (SCAQMD) the final VOC content is reported as grams of VOC
per liter of material (g/L) as set forth in section 4.2.4.
4.1 Aerosol Products
4.1.1 For aerosol products, except those containing LVP-VOC, the percent VOC
content shall be calculated using the following equation:
WL ( TV - A - H - EL ) + (WP - EP)
% voc = — WL + WP x 100
Where2:
WL = weight in grams (g), of a non-aerosol sample or the non-
propellant portion of an aerosol sample, excluding container and
packaging.
TV = weight fraction of total volatile material in a non-aerosol sample
or in the non-propellant portion of an aerosol sample.
A = weight fraction of ammonia (as NhM) in a non-aerosol sample or
in the non-propellant portion of an aerosol sample.
H = weight fraction of water in a non-aerosol sample or in the non-
propellant portion of an aerosol sample.
EL = weight fraction of exempt compound(s) in a non-aerosol sample
or in the non-propellant portion of an aerosol sample.
WP = weight (g) of propellant.
EP = weight (g) of exempt compounds in propellant.
2 Alternate test methods, as provided in section 7.0.
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4.1.2 For aerosol products containing LVP-VOC, the percent VOC shall be calculated
using the following equation:
WL (1 - H) x ( 1 - LVP ) - EL + (WP - EP)
% VOC = - IA„ — x 100
WL + WP
Where:
LVP = weight fraction of LVP-VOC compounds and/or mixtures in the
non-propellant, non-aqueous portion.
1 - H = weight fraction of the non-propellant portion that does not
contain water.
1 - LVP= weight fraction of the non-propellant, non-aqueous portion that
is volatile.
4.2 Non-Aerosol Products
4.2.1 For non-aerosol products, except those containing LVP-VOC, the percent VOC
content shall be calculated using the following equation:
% VOC = ( TV - A - H - EL ) x 100
4.2.2 For non-aerosol products containing LVP-VOC, the percent VOC shall be
calculated using the following equation:
% VOC = [ (1 - H) x ( 1 - LVP ) - EL ] x 100
4.2.3 For Fabric Softener - Single Use Dryer Product, the grams of VOC per sheet
shall be calculated as follows:
Total Grams VOC per Sheet = (TV-A-H-EL)x WS
Total Grams VOC per Sheet with LVP = [ (1 - H) x ( 1 - LVP ) - EL ] x WS
Where:
WS = weight (g) of single dryer sheet.
4.2.4 Effective January 1, 2015, for non-aerosol "Multi-purpose Solvent" and "Paint
Thinner" products sold, supplied, offered for sale, or manufactured for sale for
use in the SCAQMD, grams of VOC per liter of material (g/L) shall be
calculated using the following equation:
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WMx(TV-H - EL)
Sm
Where:
WM = weight of the material in grams.
VM = volume of the material in liters.
EL = weight fraction of exempt compounds including the weight
fraction of methyl esters with 17 or more carbon atoms in the
total volatile material.
4.3 Consumer products subject to low VOC limits (below 5.0%) may have their VOC
content characterized by a low level direct determination.
4.3.1 For aerosol products the percent VOC content may be calculated using the
following equation:
WL [ £Vn ] + (WP - EP)
% voc = m + wp x 100
Where:
V = weight fraction of non-exempted VOCs in the non-propellant
portion.
n = number of non-exempted VOCs in the non-propellant portion.
4.3.2 For non-aerosol products the percent VOC content shall be calculated using
the following equation:
%VOC^[ = Vnx]l00
5 TESTING TO DETERMINE ROC
5.1 Testing begins when the Executive Officer selects a product for analysis. The
Executive Officer will maintain sample chain of custody throughout the selection
and analytical process. When a product is selected for testing, the Executive
Officer will request the responsible party to supply the product formulation data
specified in Title 17, CCR, Consumer Products section 94526(b)(1). The
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responsible party shall supply the requested information within 25 working days.
Information submitted to the Executive Officer may be claimed as confidential;
such information will be handled in accordance with the confidentiality
procedures specified in Title 17, CCR, Disclosure of Public Records sections
91000 to 91022.
5.2 Initial Testing of Aerosol Products
If the sample is an aerosol product, the aerosol propellant is separated from the
non-propellant portion of the product using ASTM D3074-94 (as modified in
Appendix A for metal aerosol container) or ASTM D3063-94 (as modified in
Appendix A for glass aerosol container). The propellant portion is analyzed for
ROC and other compounds by using US EPA Method 18. The remaining non-
propellant portion of the product is then analyzed as specified in section 5.3.
5.3 Initial Testing of Non-Aerosol Products or the Non-Propellant Portion of Aerosol
Products
The non-aerosol product or non-propellant portion of the aerosol product is
analyzed to determine the ROC in the sample, including the presence of any
prohibited compounds. This analysis is conducted by performing the following
tests:3
5.3.1 Gravimetric analysis of samples to determine the weight percent of total
volatile material, using US EPA Method 24, US EPA Method 24A, ASTM
D2369-01.
5.3.2 Determination of sample water content. For determination of water content
either ASTM D4017-96a (including ASTM E203-01), or ASTM D3792-99 may
be used, or results from both procedures may be averaged and that value
reported.
5.3.3 Determination of ammonium content using ASTM D1426-98 or US EPA
Method 300.7.
5.3.4 Determination of ketones and alcohol content using NIOSH Method 1400.
5.3.5 Direct determination of ROC and, if present, prohibited compounds (US EPA
Method 18, US EPA Method 8240B, US EPA Method 8260B, ASTM D859-00,
NIOSH Method 1400, and modified ASTM D5443-04).
5.3.6 Determination of metal content using ASTM D5381-93 (2009).
5.3.7 Determination of specular gloss using ASTM D523-08 (2008).
3 Alternate test methods may be used, as provided in section 7.0.
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5.3.8 Determination of acid content using ASTM D1613-06 (2006).
5.3.9 For hydrocarbon compound content determination using ASTM D6730-
01(2016), ASTM D4057-12, ASTM D4177-16e1, ASTM D4626-95(2015).
5.4 Initial Determination and Verification of ROC Content
The Executive Officer will determine the ROC content by verifying formulation
data pursuant to sections 5.2 and 5.3. Only those components with
concentrations equal to or greater than 0.1 percent by weight will be reported.
5.4.1 Based on formulation data and the analysis conducted under section 5, the
Executive Officer will make an initial determination of whether the product
meets the applicable requirements specified in CARB regulations. If initial
results show that the product does not meet the applicable requirements, the
Executive Officer may perform additional testing to confirm the initial results.
5.5 Final Determination of ROC Content
If a product's status is not satisfactorily resolved under section 5.1 - 5.4, the
Executive Officer may conduct additional analyses and testing as necessary to
verify the formulation data.
5.5.1 If the Executive Officer is unable to verify the accuracy of the supplied
formulation data, then the Executive Officer will request the responsible party
to supply additional information to explain the discrepancy.
5.5.2 If the additional information supplied by the responsible party shows that the
product does not meet the applicable requirements, then the Executive
Officer will take appropriate enforcement action.
5.5.3 If the responsible party fails to provide additional information as specified in
section 5.5.1, the initial determination of ROC content under section 5.1 - 5.4
shall determine if the product is in compliance with the applicable reactivity
limits. This determination may be used to establish a violation of CARB
regulations.
5.5.4 If there exists a discrepancy that cannot be resolved between the results of
Method 310 and the formulation data or additional information supplied by the
responsible party, then the results of Method 310 shall take precedence over
the supplied formulation data or additional information. The results of Method
310 shall then determine if the product is in compliance with the applicable
requirements, and may be used to establish a violation of CARB regulations.
6 METHOD PRECISION AND ACCURACY
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6.1 The precision of Method 310 for determining VOC content was evaluated using
seven representative products with known VOC contents ranging from 6.2 to
81.2 percent VOC by weight. Each sample was divided into six portions, and
each portion was separately analyzed to determine the VOC content. Based on
the results of this analysis, the 95 percent confidence interval for Method 310 is
3.0 percent by weight.
6.2 For determining the percent by weight of the individual ingredients in aerosol
coating products, the precision and accuracy of the determination for each
ingredient is governed by the precision and accuracy of the test method used to
ascertain the percent by weight of each ingredient.
7 ALTERNATE TEST METHODS
Alternative test methods which are shown to accurately determine the concentration
of VOC or components in antiperspirant/deodorants, consumer products, or aerosol
coating products (or their emissions) may be used upon written approval of the
Executive Officer.
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Method 310 - Appendix A
PROPELLANT COLLECTION PROCEDURES
1 APPLICATION
The procedure applies to modify ASTM D3074-94 and D3063-94 to allow
collection of the propellant for analysis and density measurement for metal
aerosol containers and glass aerosol containers, respectively. These
modified procedures also retain the aerosol standard terminology listed in
ASTM D3064-97.
2 LIMITATIONS
Nitrogen analysis: Nitrogen may be used as a component of the propellant
system. Ambient air is 78 percent nitrogen and may be present as a
contaminant in the system prior to sample collection. This is eliminated by
sweeping out any connecting lines to the propellant collection bag with
product before starting sample collection. This procedure will eliminate or
reduce nitrogen contamination to less than 0.1 percent by weight of the
sample and the analysis of the propellant gas will be unaffected.
3 APPARATUS AND MATERIALS
3.1 Propellant Collection System: See Figure 1 (metal containers) and Figure 3
(glass containers).
3.2 Propellant Collection Bags equipped with slip valve and septum.
3.3 Density Measurement
3.3.1 250 mL gas dilution bulb, or
3.3.2 Density/Specific gravity meter meeting the following minimum
specifications:
3.3.2.1 Measurement Range: 0 - 3 +/- 0.00001 g/cm3
3.3.2.2 Measurement Temperature Range: 4°C ~ 70°C.
3.4 Balance, capable of accurately weighing to 0.1 mg
3.5 Sample Venting Platform. See Figure 2 (metal containers)1 and Figure 4
(glass containers)2.
1 See SOP SAS05, Figures 3 and 4.
2 See SOP SAS05, Figure 7.
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3.6 Platform Shaker, equivalent to Thermolyne M49125
3.7 Cork Rings, 80 x 32 mm
4 PROCEDURE
4.1 Propellant Collection for Metal Aerosol Containers
4.1.1 Close valves on Propellant Collection System (see Figure 1).
4.1.2 Remove the actuator from valve on the aerosol can and weigh can to
the nearest 0.01 g.
4.1.3 Place the can in an inverted position onto the Sample Venting
Platform, stabilized by cork rings.
4.1.4 Slowly raise the hydraulic jack until the can is pierced.
4.1.5 Vent the can until propellant is seen flowing from output 1. Collect the
propellant in the propellant collection bag from output 1. Density is
determined from this same propellant collection bag, as necessary.
4.1.6 After the propellant is collected, close and remove the propellant
collection bag and vent the remainder of the propellant.
4.1.7 After the flow ceases from the can, it is removed from the assembly
and allowed to vent overnight on a platform shaker, to vent the
remainder of the propellant.
4.1.8 Reweigh the can to the nearest 0.01 g and record weight loss (total
grams propellant). The can may now be opened for analysis of the
non-propellant portion of the sample.
4.2 Propellant Collection for Glass Aerosol Containers
4.2.1 Remove the actuator from valve of the aerosol glass container and
weigh container to the nearest 0.01 g.
4.2.2 With container in an inverted position place the valve onto the tapered
adaptor.
4.2.3 Pressurize the air cylinder to actuate the sample container valve onto
the tapered adaptor.
4.2.4 Open the sample valve and collect propellant sample into the
propellant collection bag. Density is determined from this same
propellant collection bag, as necessary.
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4.2.5 After the propellant is collected, close and remove the propellant
collection bag and vent the remainder of the propellant.
4.2.6 Continue to vent the container on the platform assembly until no
pressure registers on the sample gauge and there in no visible
propellant flowing from the sampling tube.
4.2.7 Remove the container from the platform.
4.2.8 Punch a small hole into the container valve assembly.
4.2.9 Place the container on a platform shaker to vent the remainder of the
propellant.
4.2.10 Reweigh the container and valve assembly to the nearest 0.01 g and
record weight loss (total grams propellant). The non-propellant portion
of the sample is ready to be analyzed.
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FIGURE 1
PROPELLANT COLLECTION SYSTEM
METAL AEROSOL CONTAINER
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FIGURE 2
SAMPLE VENTING PLATFORM
METAL AEROSOL CONTAINER
Steel Jack Plate
—6,00—
-4,750-
—+2,375-
-0O563/4X
-1/2-20 NF
4.750 6.00
Alunlnun Piercing Plate
•1/2-13 Thread, 4x
•0.75
Base Plate
©
1/2' Nut, BX 1/2' Washer, BX
JXL
JXL
m—^—m
/ Location
n®\
Notei Extend Jack to
naxlnun length (to prevent
damage fron heat), then
tack W^ld to steel Jack
plate.
Manual Hydraulic Jack (2 Ton) Piercer and Vlton Gasket
1/2-13 Steel Retaining Rod - 30' Length, 4X
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FIGURE 3
PROPELLANT COLLECTION SYSTEM
GLASS AEROSOL CONTAINER
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FIGURE 4
SAMPLE VENTING PLATFORM
GLASS AEROSOL CONTAINER
-4.750-
13754-
42.000 •
y-0O.75(V4X
/ _ -t'
,1675 |
1.000 4.750 &00
Ah* Cylinder Mocrrtlng Plate
Tapered Adapter Mocrrthg Plate
l/B-13 Thread, 4x
y-l/S-13 Thread,
/ -4-1-0.;
tJXL
Tapered Adaptor and D-Rhg
@ <§>
1/2* Nut, ex 1/2* Washer, BX
Air Cylinder Rear Flange Mounting Plate
D D=B
Ah* Cylinder, nonrotatlng drop-In tie rod, 1-1/8* bore, 4' stroke
JXL
1/2-13 Threaded Rod - 24' Length, 4X
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