AA/3terSense                              High-Efficiency Bathroom Sink Faucet Specification
              High-Efficiency Bathroom Sink Faucet Specification

 1.0 Scope and Objective

 This specification establishes the criteria for a high-efficiency bathroom sink (lavatory)1 faucet
 under the U.S. Environmental  Protection Agency (EPA) WaterSense® program. It is applicable
 to all types of lavatory faucets, lavatory faucet accessories2 specifically designed to control the
 flow of water, and any other lavatory faucet technologies that meet these performance

 The specification is designed to ensure both sustainable, efficient water use and a high level of
 user satisfaction with lavatory faucet performance.

 2.0 WaterEfficiency and Performance Criteria

 Lavatory faucets and lavatory faucet accessories must conform to applicable requirements in
 ASME A112.18.1.3  In addition, the flow rate shall be tested in accordance with the procedures
 in ASME A112.18.1 and shall meet the following criteria:

 •      The flow rate shall not exceed 1.5 gallons per minute (gpm)4 (5.7 liters  per minute) at a
       pressure of 60 pounds per square inch (psi) at the inlet, when water is flowing; and

 •      The flow rate shall not be  less than 1.2 gpm (4.5 liters per minute) at a  pressure of 20 psi
       at the inlet, when water is flowing:

 The flow rate, tested at 60 psi  in accordance with the procedures in ASME A112.18.1, shall
 not vary beyond +/- 0.1 gpm of the certified flow rate of the product.

 3.0  Effective Date

 This specification is effective on July 1, 2007.

 4.0 Future Specification Revisions

 EPA reserves the right to revise this specification should technological and/or market changes
 affect its usefulness to consumers, industry, or the environment. Revisions to the specification
 would be made following discussions with industry partners and other interested stake holders.
 1 Lavatory, other than public lavatory or metering.
 2 Accessory, as defined in ASME 112.18.1, means a component that can, at the discretion of the user, be readily added, removed,
 or replaced, and that, when removed, will not prevent the fitting from fulfilling its primary function.  For the purpose of this
 specification, an accessory can include, but is not limited to lavatory faucet flow restrictors, flow regulators, aerator devices, laminar
 devices, and pressure compensating devices.
 3 Reference to this ASME standard applies to the most current version.
 4 The maximum flow rate has been established as 1.5 gpm, which is a 32 percent reduction from the 2.2 gpm standard codified
 under 10 CFR Part 430 (63 FR 13307; March 18, 1998).
 Version 1.0                                   1                                      February 8, 2007

AA/3teTSense                              High-Efficiency Bathroom Sink Faucet Specification
 5.0 Definitions

 Definitions within ASME A112.18.1 are incorporated herein by reference.

 Certified flow rate: The intended flow rate at a pressure of 60 psi, when water is flowing,
 based on the design of the product, as marked on the product or product packaging.
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AA/3teTSense                               High-Efficiency Bathroom Sink Faucet Specification
                                         APPENDIX A

                         Informative Annex for WaterSense Labeling

 The following requirements must be met for products to be marked with the WaterSense label.

 1.0 WaterSense Partnership

 The Manufacturer5 of the product must have a signed partnership agreement in place with EPA.

 2.0 Conformity Assessment

 Conformance to this specification must be certified by a body either accredited by ANSI in
 accordance with the WaterSense certification scheme, or otherwise approved for that purpose
 by EPA.
 5 Manufacturer, as defined in the WaterSense program guidelines, means "Any organization that produces a product for market that
 might be eligible to meet WaterSense criteria for efficiency and performance. Manufacturers may also produce "private label"
 products that are sold under the brand name of a separate organization, which is treated as a separate partner/application from the
 original product manufacturer."
 Version 1.0                                   A-1                                     February 8, 2007