ISO 5994:1979

Sodium sulphate for industrial use — Determination of calcium content — Flame atomic absorption spectrometric method

Specifies a method, the principle of which is based on acidification of a test portion with hydrochlorid acid, aspiration of the test solution into an acetylene-dinitrogen monoxide or acetylene-air-flame, and measurement of the absorption of the 422,7 nm line emitted by a calcium hollow-cathode lamp.

SDO:

ISO

Language:

English

ICS Codes:

71.060.50

Status:

Withdrawn

Publish date:

1979-08-31

Standard Number:

ISO 5994:1979