International Standard
ISO 9809-4:2026
Gas cylinders — Design, construction and testing of refillable seamless steel gas cylinders and tubes — Part 4: Stainless steel cylinders with an R m value of less than 1 100 MPa
Reference number
ISO 9809-4:2026
Edition 3
2026-02
© ISO 2026
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Published (Edition 3, 2026)

ISO 9809-4:2026

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Abstract

This document specifies the minimum requirements for the materials, design, construction and workmanship, manufacturing processes, examinations and testing at time of manufacture for refillable, seamless, stainless steel gas cylinders with water capacities up to and including 150 l.

It is applicable to cylinders for compressed, liquefied and dissolved gases with a maximum actual tensile strength, Rma, of less than 1 100 MPa.

NOTE            If so desired, cylinders of water capacity between 150 l and 450 l can be manufactured to be in full conformance to this document.

General information

  • Status
     : Published
    Publication date
     : 2026-02
    Stage
    : International Standard published [60.60]
  • Edition
     : 3
    Number of pages
     : 53
  • Technical Committee :
    ISO/TC 58/SC 3
    ICS :
    23.020.35 
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