ISO 11400:2021 PDF
Nickel, ferronickels and nickel alloys — Determination of phosphorus content — Phosphovanadomolybdate spectrophotometric method
Nickel, ferronickels and nickel alloys — Determination of phosphorus content — Phosphovanadomolybdate spectrophotometric method
- Статус документа:
- Действующий
- Формат:
- Электронный (PDF)
- Количество страниц:
- 9
- Дата публикации:
- 15 декабря 2021 г.
- Издание:
- ISO IS 11400 edition 2 version 1
- ICS:
- 77.100
This document specifies a spectrophotometric method for the determination of the phosphorus content in nickel, ferronickels and nickel alloys between 0,000 5 % (by mass) and 0,05 % (by mass). Arsenic, chromium, hafnium, niobium, silicon, tantalum, titanium and tungsten interfere, but the interferences can be avoided by complexation or volatilization (for chromium). The lowest phosphorus content [0,000 5 % (by mass)] can only be reached in samples with low contents of these interfering elements.
Abstract
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