Projects of ISO/TC 138/SC 2/WG 4

Document number Begin Title Comment
ISO/CD 4427-3 2025-12-15 Plastics piping systems for water supply, and for drains and sewers under pressure - Polyethylene (PE) - Part 3: Fittings More  Comment 
ISO/CD 4427-5 2025-12-15 Plastics piping systems for water supply, and for drains and sewers under pressure - Polyethylene (PE) - Part 5: Fitness for purpose of the system More  Comment 
ISO/CD 4427-2 2025-12-15 Plastics piping systems for water supply, and for drains and sewers under pressure - Polyethylene (PE) - Part 2: Pipes More  Comment 
ISO/CD 4427-1 2025-12-15 Plastics piping systems for water supply, and for drains and sewers under pressure - Polyethylene (PE) - Part 1: General More  Comment 

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