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ONORM EN 1975:2004
Transportable gas cylinders - Specification for the design and construction of refillable transportable seamless aluminium and aluminium alloy gas cylinders of capacity from 0,5 litre up to 150 litres (EN 1975:1999 + A1:2003) (Austrian Standard)
The method is applicable to alloys having silicon contents between 0,01 and 0,6 %. The method does not apply to alloys containing rare earths or thorium. Specifies principle and procedure of the method, the reagents, apparatus, sampling, expression of results and test report.
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Austrian Standards Institute [on]