ISO 793:1973 Preview
Aluminium and aluminium alloys -- Determination of iron -- Orthophenanthroline photometric method
This standard was last reviewed and confirmed in 2017. Therefore this version remains current.
The method is applicable to the determination of iron content between 0,05 and 2,5 % in aluminium and aluminium alloys. The method does not apply completely to unalloyed aluminium, aluminium-silicon alloys and any other aluminium alloy that is not easily attacked with hydrochloric acid (see annex A) and alloys containing copper, zinc and nickel (see annex B).
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