ISO 900:1977

Withdrawn

Aluminium oxide primarily used for the production of aluminium Determination of titanium content Diantipyrylmethane photometric method

Available format(s)

Hardcopy , PDF 1 User , PDF 3 Users , PDF 5 Users , PDF 9 Users

Withdrawn date

26-02-2019

Language(s)

English, French

Published date

01-10-1977

Publisher

International Organization for Standardization

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)
DocumentType	Standard
Pages	4
PublisherName	International Organization for Standardization
Status	Withdrawn

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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ISO 900:1977

Withdrawn

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