ISO 900:1977
Withdrawn
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.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 titanium content Diantipyrylmethane photometric method
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02-26-2019
English, French
10-01-1977
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Applicable to all products having a titanium dioxide content of equal to or more than 0.001 % (m/m). Describes the preparation of the diantipyrylmethane solution and the preparation of the titanum standard solution. The procedure of the preparation of a principal solution or the chemical analysis by an alkaline fusion is carried out according to ISO 804 replacing the nitric acid solution by the sulphuric one. After extraction of the fused mass with sulphuric acid solution formation of the titanium-diantipyrylmethane complex (approximately 4.6 N solution). Photometric measurement of the coloured complex at a wavelength of about 420 nm. Has also been approved by the IUPAC. Replaces and cancels ISO Recommendation R 900/1968 of which it constitutes a technical revision.
| DevelopmentNote |
Also numbered as BS 4140-6(1980) (07/2005)
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| DocumentType |
Standard
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| Pages |
4
|
| PublisherName |
International Organization for Standardization
|
| Status |
Withdrawn
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| Standards | Relationship |
| NBN T 03 406 : 1983 | Identical |
| NFT 20 207 : 80 FD | Identical |
| BS 4140-16:1986 | Methods of test for aluminium oxide Determination of zinc content by flame atomic absorption |
| BS 4140-9:1986 | Methods of test for aluminium oxide Measurement of the angle of repose |
| BS 4140-4:1986 | Methods of test for aluminium oxide Preparation of sample solution by alkaline fusion |
| CEI EN 61284 : 1999 | OVERHEAD LINES - REQUIREMENTS AND TESTS FOR FITTINGS |
| BS 4140-13:1986 | Methods of test for aluminium oxide Preparation of sample solution by treatment with hydrochloric acid under pressure |
| UNI EN 1457-2 : 2012 | CHIMNEYS - CLAY/CERAMIC FLUE LINERS - PART 2: FLUE LINERS OPERATING UNDER WET CONDITIONS - REQUIREMENTS AND TEST METHODS |
| 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 4140-8:1986 | Methods of test for aluminium oxide Determination of absolute density using a pyknometer |
| 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 |
| ISO 804:1976 | Aluminium oxide primarily used for the production of aluminium Preparation of solution for analysis Method by alkaline fusion |
| ISO 802:1976 | Aluminium oxide primarily used for the production of aluminium Preparation and storage of test samples |
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