ISO 10697-2:1994

Published (Edition 1, 1994)

This publication was last reviewed and confirmed in 2023. Therefore this version remains current.

ISO 10697-2:1994

CHF 65

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Abstract

The principle of the method specified is dissolving a test portion in hydrochloric and nitric acids, fusing the acid-insoluble residue with sodium carbonate, adding potassium chloride/lanthanum nitrate solution as a spectrochemical buffer, spraying the solution into a dinitrogen monoxide-acetylen flame, and spectrometrically measuring the atomic absorption of the 422,7 nm spectral line emitted by a calcium hollow cathode lamp. The method is applicable to calcium contents betwen 0,0005 % (m/m) and 0,005 % (m/m).

General information

Status
: Published

Publication date
: 1994-02

Stage
: International Standard confirmed [90.93]
Edition
: 1

Number of pages
: 10
Technical Committee :
ISO/TC 17/SC 1

ICS :
77.080.20
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