2022ISO 3459:2022 Plastic piping systems — Mechanical joints between fittings and pressure pipes — Test method for leaktightness under negative pressure
2015ISO 3459:2015 Plastic piping systems - Mechanical joints between fittings and pressure pipes - Test method for leaktightness under negative pressure
1976ISO 3459:1976 Polyethylene (PE) pressure pipes; Joints assembled with mechanical fittings; Internal under-pressure test method and requirement