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296-150V-1440  <<  296-150V-1450 >>   296-150V-1460

PDFWAC 296-150V-1450

What requirements apply to testing for gas piping leaks before conversion vendor unit or medical unit appliances are connected?

(1) The piping system must stand a pressure of at least 10 psi gauge for a period of not less than fifteen minutes without showing any drop in pressure.
(2) Pressure must be measured with a gauge calibrated to be read in increments of not greater than 1/10 pound.
(3) The source of pressure must be isolated before the pressure tests are made. Before a test is begun, the temperature of the ambient air and of the piping must be approximately the same, and constant air temperature must be maintained throughout the test.
[Statutory Authority: Chapter 43.22 RCW. WSR 99-18-069, ยง 296-150V-1450, filed 8/31/99, effective 10/1/99.]
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