Thermoplastics piping systems. Non-end-load-bearing elastomeric sealing ring type joints between pressure pipes and moulded fittings. Test method for leaktightness under internal hydrostatic pressure without end thrust— 10 стр.
Plastics piping systems. End-load-bearing and non-end-load bearing assemblies and joints for thermoplastics pressure piping. Test method for long-term leaktightness under internal water pressure— 12 стр.
