ISO 4742:1984 PDF
Copper alloys — Determination of nickel content — Gravimetric method
Copper alloys — Determination of nickel content — Gravimetric method
- Статус документа:
- Действующий
- Формат:
- Электронный (PDF)
- Количество страниц:
- 2
- Дата публикации:
- 1 марта 1984 г.
- Издание:
- ISO IS 4742 edition 1 version 1
- ICS:
- 77.120.30
The method is applicable to the determination of nickel contents between 2 and 50 % (m/m). ISO 4742 specifies principle, reagents, apparatus, procedure, expression of results and test report. Normal precautions regarding the use of perchloride acid in laboratory work should be observed.
Abstract
Overview
ISO 4742:1984 specifies a for the determination of . The standard covers principle, reagents, apparatus, detailed procedure, expression of results and test report requirements. It is applicable to nickel contents between . The procedure requires dissolution of the sample, removal of interfering elements (tin, silicon), separation of copper by electrolysis, and precipitation of nickel as the dimethylglyoxime complex for gravimetric measurement. use are emphasized.
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