ISO 3459:1976
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Polyethylene (PE) pressure pipes — Joints assembled with mechanical fittings — Internal under-pressure test method and requirement
| Published By | Publication Date | Number of Pages |
| ISO | 1976-10 | 4 |
Specification of the test method and apparatures for checking the leakproofness of assembled joints, when the external pressure is greater than the pressure within the pipe. The test shall be carried out at two levels of difference between external and internal pressures (0,01 and 0,08 MPa).