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ISO 11400:1992

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

Sep 3, 1992

General information

90.92     Mar 8, 2021

ISO

ISO/TC 155

International Standard

77.100     77.120.40  

French   English  

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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.

Life cycle

NOW

PUBLISHED
ISO 11400:1992
90.92 Standard to be revised
Mar 8, 2021

REVISED BY

IN_DEVELOPMENT
ISO/FDIS 11400

National adoptions

SSH ISO 11400:1992  
DPS

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

60.60 Standard published

DPS/KT 133 more

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