Appendix S to Subpart B of Part 430 - Uniform Test Method for Measuring the Water Consumption of Faucets and Showerheads
10:3.0.1.4.18.3.13.6.29 : Appendix S
Appendix S to Subpart B of Part 430 - Uniform Test Method for
Measuring the Water Consumption of Faucets and Showerheads Note:
After April 21, 2014, any representations made with respect to
the water consumption of showerheads or faucets must be made in
accordance with the results of testing pursuant to this
appendix.
Manufacturers conducting tests of showerheads or faucets
November 22, 2013 and prior to April 21, 2014, must conduct such
test in accordance with either this appendix or appendix S as it
appeared at 10 CFR part 430, subpart B, appendix S, in the 10 CFR
parts 200 to 499 edition revised as of January 1, 2013. Any
representations made with respect to the water consumption of such
showerheads or faucets must be in accordance with whichever version
is selected. Given that after April 21, 2014 representations with
respect to the water consumption of showerheads and faucets must be
made in accordance with tests conducted pursuant to this appendix,
manufacturers may wish to begin using this test procedure as soon
as possible.
1. Scope: This appendix covers the test requirements used
to measure the hydraulic performance of faucets and
showerheads.
2. Flow Capacity Requirements
a. Faucets - The test procedures to measure the water flow rate
for faucets, expressed in gallons per minute (gpm) and liters per
minute (L/min), or gallons per cycle (gal/cycle) and liters per
cycle (L/cycle), shall be conducted in accordance with the test
requirements specified in section 5.4, Flow Rate, of ASME
A112.18.1-2012 (incorporated by reference, see § 430.3).
Measurements shall be recorded at the resolution of the test
instrumentation. Calculations shall be rounded off to the same
number of significant digits as the previous step. The final water
consumption value shall be rounded to one decimal place for
non-metered faucets, or two decimal places for metered faucets.
b. Showerheads - The test procedures to measure the water flow
rate for showerheads, expressed in gallons per minute (gpm) and
liters per minute (L/min), shall be conducted in accordance with
the test requirements specified in section 5.4, Flow Rate, of the
ASME A112.18.1-2012 (incorporated by reference, see §
430.3). Measurements shall be recorded at the resolution of the
test instrumentation. Calculations shall be rounded off to the same
number of significant digits as the previous step. The final water
consumption value shall be rounded to one decimal place. If the
time/volume method of section 5.4.2.2(d) is used, the container
must be positioned as to collect all water flowing from the
showerhead, including any leakage from the ball joint.
[63 FR 13316, Mar. 18, 1998, as amended at 78 FR 62986, Oct. 23,
2013]