Proof
ISO/PRF 4437-4
Plastics piping systems for the supply of gaseous fuels — Polyethylene (PE) — Part 4: Valves
Reference number
ISO/PRF 4437-4
Edition 3
2026-12
© ISO 2026
Proof
Under development (Edition 3, 2026)
This draft is in the approval phase.
Will replace ISO 4437-4:2022

General information

  • Status
     : Under development
    Publication date
     : 2026-12
    Stage
    : Proof sent to secretariat or FDIS ballot initiated: 8 weeks [50.20]
  • Edition
     : 3
    Number of pages
     : 24
  • Technical Committee :
    ISO/TC 138/SC 7
    ICS :
    75.200  83.140.30 
  • RSS updates

Life cycle

Sustainable Development Goals

This standard contributes to the following Sustainable Development Goals

9
Industry, Innovation and Infrastructure
11
Sustainable Cities and Communities
12
Responsible Consumption and Production

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