ISO International Standard

Magnesium alloys — Determination of insoluble zirconium — Alizarin sulphonate photometric method

The method is applicable to alloys having insoluble zirconium contents between 0,02 and 0,3 %. Rare earths, thorium and silver do not interfere. Specifies principle and procedure of the method, reagents, apparatus, sampling, expression of results and test report.

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