Active standard | Published: 03/02/1994

ISO 10697-2:1994

Steel — Determination of calcium content by flame atomic absorption spectrometry — Part 2: Determination of total calcium content
(Aciers — Dosage du calcium par spectrométrie d´absorption atomique dans la flamme — Partie 2: Dosage du calcium total)

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Detail information

Designation: ISO 10697-2:1994

Publication date: 03/02/1994

Pages: 10

Country: International technical standard

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Anotation

Description / 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).

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