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
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Status: PublishedPublication date: 2021-11Stage: International Standard to be revised [90.92]
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Edition: 2Number of pages: 54
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Technical Committee :ISO/TC 58/SC 3ICS :23.020.35
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Life cycle
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Previously
WithdrawnISO 9809-4:2014
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Now
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00
Preliminary
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10
Proposal
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20
Preparatory
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30
Committee
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40
Enquiry
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50
Approval
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60
Publication
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90
Review
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95
Withdrawal
Corrigenda / Amendments
DeletedISO 9809-4:2021/WD Amd 1
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00
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Will be replaced by
Under developmentISO/CD 9809-4
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