KS M ISO 3458:2019 Plastics piping systems — Mechanical joints between fittings and pressure pipes — Test method for leak tightness under internal pressure
2019KS M ISO 3458:2019 Plastics piping systems — Mechanical joints between fittings and pressure pipes — Test method for leak tightness under internal pressure
2004KS M ISO 3458:2004 Assembled joints between fittings and polyethylene(PE) pressure pipes－Test of leakproofness under internal pressure