ISO 2069:1976
Withdrawn
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
Aluminium oxide primarily used for the production of aluminium Determination of calcium content Flame atomic absorption method
Hardcopy , PDF , PDF 3 Users , PDF 5 Users , PDF 9 Users
09-05-2019
English, French
01-08-1976
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This method is applicable to products having Ca contents greater than 0,003 % (m/m). The principle consists in dissolution of a test portion by the influence of hydrochloric acid under pressure. Addition of sodium ions to promote and to stabilize the emission of calcium, and of lanthanum ions or triethanolamine to increase the sensitivity. Aspiration of the solution into an acetylene-dinitrogen monoxide flame and photometric measurement of the absorption of the 422,7 nm line emitted by a hollow-cathode calcium lamp. For the determination of higher CaO contents (over about 0,03 % (m/m)) an acetylene-air flame can be used. Replaces ISO Recommendation R 2069-1971.
| DocumentType |
Standard
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| Pages |
4
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| PublisherName |
International Organization for Standardization
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| Status |
Withdrawn
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| Standards | Relationship |
| NBN T 03 413 : 1983 | Identical |
| BS 4140-8:1986 | Methods of test for aluminium oxide Determination of absolute density using a pyknometer |
| BS 4140-6:1980 | Methods of test for aluminium oxide Determination of titanium content |
| BS 4140-9:1986 | Methods of test for aluminium oxide Measurement of the angle of repose |
| BS 4140-13:1986 | Methods of test for aluminium oxide Preparation of sample solution by treatment with hydrochloric acid under pressure |
| BS 4140-16:1986 | Methods of test for aluminium oxide Determination of zinc content by flame atomic absorption |
| BS 4140-7:1986 | Methods of test for aluminium oxide Determination of iron content |
| BS 4140-22:1980 | Methods of test for aluminium oxide Determination of manganese content |
| BS 4140-5:1986 | Methods of test for aluminium oxide Determination of silica content |
| BS 4140-4:1986 | Methods of test for aluminium oxide Preparation of sample solution by alkaline fusion |
| BS 4140-1:1986 | Methods of test for aluminium oxide Preparation and storage of test samples |
| BS 4140-12:1986 | Methods of test for aluminium oxide Determination of vanadium content |
| BS 4140-11:1986 | Methods of test for aluminium oxide Determination of sodium content |
| BS 4140-10:1986 | Methods of test for aluminium oxide Determination of untamped density |
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