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SSH ISO 11400:1992

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

May 9, 2017

General information

60.60     Feb 7, 2017

DPS

DPS/KT 133

International Standard

77.100     77.120.40  

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Scope

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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SSH ISO 11400:1992
60.60 Standard published
Feb 7, 2017

Related project

Adopted from ISO 11400:1992