ISO 1178:1976 Preview
Magnesium alloys -- Determination of soluble zirconium -- Alizarin sulphonate photometric method
This standard was last reviewed and confirmed in 2017. Therefore this version remains current.
The method is applicable to alloys having zirconium contents between 0,1 and 1,0 % (m/m). However the method is not applicable completely to alloys having lead and/or bismuth (see annex). Rare earths, thorium and silver do not interfere. Specifies principle and procedure of the method, the reagents, apparatus, sampling, expression of results and test report.
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