Wash. Admin. Code § 296-150V-1460 - What requirements apply to testing for gas piping leaks after conversion vendor unit or medical unit appliances are connected?
(1) After gas appliances have been connected,
the gas-piping system must be subjected to a pressure test with the burner
valves closed. The test consists of air at not less than ten inches nor more
than fourteen inches pressure of water column (six to eight ounces). The system
must hold this pressure for a period of not less than ten minutes with no
leakage. Before beginning the test, the temperature of the gas-piping system
and the test air must be equalized, and this shall be maintained throughout the
test.
(2) Appliance shut-off valves
ahead of gas cooking appliances may be closed for the performance of this test.
When the test is satisfactorily performed, these valves must be opened and,
while the system is under pressure, the appliance connectors must be tested
with an approved leak detector or approved bubble solution.
Notes
Statutory Authority: Chapter 43.22 RCW. 99-18-069, § 296-150V-1460, filed 8/31/99, effective 10/1/99.
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