Pressure Testing Checklist

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Pressure tests are performed to ensure the safety, reliability, and leak tightness of pressure systems. A pressure test is required for a new pressure system before use or an existing pressure system after repair or alteration. There are two methods for pressure tests: hydrostatic and pneumatic. A hydrostatic test is performed by using water as the test medium, whereas a pneumatic test uses air, nitrogen, or any non-flammable and nontoxic gas.  Pressure tests must be hydrostatic unless pneumatic tests can be justified. Pressure tests must always be performed under controlled conditions, following an approved test plan, and documented in a test record. A single approved test plan may be used for several similar tests, but a separate test record is required for each

The purpose of these checklist is to ensure that pressure tests are conducted safely and effectively. It cover pressure testing of new and existing pressure systems or components at a test pressure more than 0 psig. It apply to mechanics, supervisors, inspectors, custodians, and subcontractors responsible for pressure tests.

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