ISO 11400:1992 (R2020)
Superseded , Reaffirmed Standard
Historical

ISO 11400:1992 (R2020)

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

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.

Notes

95.99 : Annulation de la Norme internationale

Technical characteristics

Publisher International Organization for Standardization (ISO)
Publication Date 09/03/1992
Confirmation Date 09/03/2020
Edition 1
Page Count 5
EAN ---
ISBN ---
Weight (in grams) ---
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