ISO 3604:1976

Fittings for unplasticized polyvinyl chloride (PVC) pressure pipes with elastic sealing ring type joints — Pressure test for leakproofness under conditions of external hydraulic pressure

Specification of test method and apparatus for checking the leakproofness of an assembled joint, when submitted to external hydraulic pressure greater than the atmospheric pressure within the pipe. The test shall be carried out at two levels of pressure difference (0,01 MPa and 0,08 MPa). No leakage shall occur.