Phosphorus content can be determined in the range of 0,000 5 % (m/m) to 0,05 % (m/m). As, Cr, Hf, Nb, Si, Ta, Ti, W interfere, but the interferences can be avoided. The principle is dissolution of a test portion in a mixture of nitric and hydrochloric acids, fuming with perchloric acid, removal of chromium, complexation of silicon, conversion of phosphorus to phosphovanadomolybdic acid, extraction of this compound.
Status: WithdrawnPublication date: 1992-09
Edition: 1Number of pages: 5
Technical Committee: ISO/TC 155 Nickel and nickel alloys
This standard contributes to the following Sustainable Development Goal:
ISO 11400:1992Stage: 95.99
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