49 CFR § 179.220-24
Tests of pressure relief valves
November 18, 2020
Each safety relief valve must be tested by air or gas for compliance with §179.15 before being put into service.
[Amdt. 179-9, 36 FR 21343, Nov. 6, 1971, as amended at 62 FR 51561, Oct. 1, 1997]
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