Uniform test method to measure flow rate and spray force of commercial prerinse spray valves.

CFR · 2024-01-01 · US · Title 10

(a) (b) (ii) Perform calculations in accordance with Section 11.3.1 (Calculation and Report) of ASTM F2324. Record the water temperature ( °F) and dynamic water pressure (psi) once at the start for each run of the test. Record the time (min), the normalized weight of water in the carboy (lb) and the resulting flow rate (gpm) once at the end of each run of the test. Record flow rate measurements of time (min) and weight (lb) at the resolutions of the test instrumentation. Perform three runs on each unit, as specified in Section 10.2.5 of ASTM F2324, but disregard any references to Annex A1. Then, for each unit, calculate the mean of the three flow rate values determined from each run. Round the final value for flow rate to two decimal places and record that value. (2) (c) (1) Measure both the flow rate and spray force according to paragraphs (b)(1) and (2) of this section (including calculating the mean flow rate and mean spray force) for each spray setting; and (2) Record the mean flow rate for each spray setting, rounded to two decimal places. Record the mean spray force for each spray setting, rounded to one decimal place. (d)

official document · source cfr-2024 · id 10:§ 431.264