714466

ISO 10697-2:1994

Steel -- Determination of calcium content by flame atomic absorption spectrometry -- Part 2: Determination of total calcium content

standard by International Organization for Standardization , 02/01/1994

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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).

 

Product Details

Published:
02/01/1994
Number of Pages:
10
File Size:
1 file , 1.8 MB
Note:
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