ISO 7530-7:1992
Current
The latest, up-to-date edition.
Nickel alloys Flame atomic absorption spectrometric analysis Part 7: Determination of aluminium content
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English, French
03-09-1992
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Silicon content can be determined in the range of 0,2 % (m/m) to 1 % (m/m). The principle is dissolution of a test portion in acid, filtration and aspiration of the test solution into a nitrous oxide-acetylene flame of an atomic absorption spectrometer, combustion of the filter, volatilization of silica, fusion of the residue, dissolution of the melt in dilute acid, aspiration of this second solution into another such flame, measurement of the absorbance of the resonance line energy from the spectrum of aluminium and comparison with that of calibration solutions at 309,3 nm.
| DevelopmentNote |
Also numbered as BS 7455-7(1992) (10/2005)
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| DocumentType |
Standard
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| Pages |
4
|
| PublisherName |
International Organization for Standardization
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| Status |
Current
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| Standards | Relationship |
| JIS H 1284:1999 | Identical |
| GOST R ISO 7530-7 : 2017 | Identical |
| ISO 9725:2017 | Nickel and nickel alloy forgings |
| ISO 7530-1:2015 | Nickel alloys Flame atomic absorption spectrometric analysis Part 1: Determination of cobalt, chromium, copper, iron and manganese |
| ISO 5725:1986 | Precision of test methods Determination of repeatability and reproducibility for a standard test method by inter-laboratory tests |
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