ISO 10697-2:1994
Steel; determination of calcium content by flame atomic absorption spectrometry; part 2: determination of total calcium content
- Standard No.
- ISO 10697-2:1994
- Release Date
- 1994
- Published By
- International Organization for Standardization (ISO)
- Latest
- ISO 10697-2:1994
- Scope
- 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).
ISO 10697-2:1994 history
- 1994 ISO 10697-2:1994 Steel; determination of calcium content by flame atomic absorption spectrometry; part 2: determination of total calcium content
