Specifies minimum requirements for certain aspects concerning material, design, construction, and workmanship, manufacturing processes and test at manufacture of refillable gas cylinders of a test pressure not greater than 75 bar, and of water capacities from 1 up to and including 150 L for compressed, liquefied or dissolved gases, exposed to ambient temperatures. Comprises definitions and symbols. Annex A gives a special prototype test. An example of acceptance certificate is included in annex B.
ISO 4706:1989 history
2023ISO 4706:2023 Gas cylinders — Refillable welded steel cylinders — Test pressure 60 bar and below
2008ISO 4706:2008 Gas cylinders - Refillable welded steel cylinders - Part 1: Test pressure 60 bar and below
1989ISO 4706:1989 Refillable welded steel gas cylinders