ISO 804:1976

Withdrawn

Aluminium oxide primarily used for the production of aluminium Preparation of solution for analysis Method by alkaline fusion

Available format(s)

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

Withdrawn date

16-07-2021

Language(s)

English, French

Published date

01-09-1976

Publisher

International Organization for Standardization

The procedure for the preparation of a principal solution for chemical analysis requires at first an alkaline fusion of the test portion, either with a mixture of sodium carbonate and boric acid or with a mixture of sodium carbonate and sodium tetraborate. Subsequent dissolution of the molten mass in an excess of nitric acid and adjustment of an appropriate aliquot portion to pH 2. Replaces ISO Recommendation R804/1968.

DevelopmentNote	Also numbered as BS 4140-4(1986) (07/2005)
DocumentType	Standard
Pages	3
PublisherName	International Organization for Standardization
Status	Withdrawn

Standards	Relationship
NBN T 03 403 : 1983	Identical

BS 4140-8:1986	Methods of test for aluminium oxide Determination of absolute density using a pyknometer
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 4140-6:1980	Methods of test for aluminium oxide Determination of titanium content
ANSI S12.62 : 2012(R2017)	ACOUSTICS - ATTENUATION OF SOUND DURING PROPAGATION OUTDOORS - PART 2: GENERAL METHOD OF CALCULATION
I.S. EN ISO 12001:2009	ACOUSTICS - NOISE EMITTED BY MACHINERY AND EQUIPMENT - RULES FOR THE DRAFTING AND PRESENTATION OF A NOISE TEST CODE
BS 4140-1:1986	Methods of test for aluminium oxide Preparation and storage of test samples
UNI EN ISO 12001 : 2009	ACOUSTICS - NOISE EMITTED BY MACHINERY AND EQUIPMENT - RULES FOR THE DRAFTING AND PRESENTATION OF A NOISE TEST CODE
ANSI S12.62 : 2012	ACOUSTICS - ATTENUATION OF SOUND DURING PROPAGATION OUTDOORS - PART 2: GENERAL METHOD OF CALCULATION
BS 4140-22:1980	Methods of test for aluminium oxide Determination of manganese 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 900:1977	Aluminium oxide primarily used for the production of aluminium Determination of titanium content Diantipyrylmethane photometric method