714848

ISO 11400:1992

Nickel, ferronickel and nickel alloys - Determination of phosphorus content - Phosphovanadomolybdate molecular absorption spectrometric method

standard by International Organization for Standardization , 09/01/1992

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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.

 

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Published:
09/01/1992
Number of Pages:
5
File Size:
1 file , 500 KB
Same As:
ISO 11400:1992
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This product is unavailable in Ukraine, Russia, Belarus
 

Document History

  1. ISO 11400:2021


    Nickel, ferronickels and nickel alloys - Determination of phosphorus content - Phosphovanadomolybdate spectrophotometric method

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  2. ISO 11400:1992

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    Nickel, ferronickel and nickel alloys - Determination of phosphorus content - Phosphovanadomolybdate molecular absorption spectrometric method

    • Historical Version