ISO 4942:2016
Steels and irons — Determination of vanadium content — N-BPHA spectrophotometric method
Steels and irons — Determination of vanadium content — N-BPHA spectrophotometric method
- Статус документа:
- Действующий
- Формат:
- Электронный (PDF)
- Количество страниц:
- 10
- Дата публикации:
- 23 июня 2016 г.
- Издание:
- ISO IS 4942 edition 2 version 1
- ICS:
- 77.080.01
ISO 4942:2016 specifies an N-benzoylphenylhydroxylamine (N-BPHA) spectrophotometric method for the determination of vanadium in steels and cast irons. It is applicable to vanadium contents between 0,005 % and 0,50 % (mass fraction).
Abstract
Overview
ISO 4942:2016 specifies an N‑benzoylphenylhydroxylamine () spectrophotometric method for the determination of . The method is applicable to vanadium mass fractions from . It provides a laboratory procedure for dissolving samples, chemically converting vanadium to a coloured complex, extracting that complex into an organic phase and measuring absorbance at about .
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