ISO-4706 Gas cylinders - Refillable welded steel cylinders - Test pressure 60 bar and below

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ISO 4706:2008 specifies the minimum requirements concerning material selection, design, construction and workmanship, procedure and test at manufacture of refillable welded-steel gas cylinders of a test pressure not greater than 60 bar, and of water capacities from 0,5 l up to and including 500 l exposed to extreme worldwide temperatures (-50 øC to +65 øC) used for compressed, liquefied or dissolved gases.

Transportable large cylinders of water capacity above 150 l and up to 500 l may be manufactured and certified to ISO 4706 provided handling facilities are provided.

ISO 4706 is primarily intended to be used for industrial gases other than Liquefied Petroleum Gas (LPG), but may also be applied for LPG. For specific LPG applications see ISO 22991.




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Document Number

ISO 4706:2008

Revision Level




Publication Date

July 1, 2008

Committee Number

ISO/TC 58/SC 3