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>BSI Standards >71 CHEMICAL TECHNOLOGY>71.100 Products of the chemical industry>71.100.10 Materials for aluminium production>BS 4140-13:1986 Methods of test for aluminium oxide Preparation of sample solution by treatment with hydrochloric acid under pressure
immediate downloadReleased: 1986-01-31
BS 4140-13:1986 Methods of test for aluminium oxide Preparation of sample solution by treatment with hydrochloric acid under pressure

BS 4140-13:1986

Methods of test for aluminium oxide Preparation of sample solution by treatment with hydrochloric acid under pressure

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Standard number:BS 4140-13:1986
Pages:10
Released:1986-01-31
ISBN:0 580 14929 3
Status:Standard
DESCRIPTION

BS 4140-13:1986


This standard BS 4140-13:1986 Methods of test for aluminium oxide is classified in these ICS categories:
  • 71.100.10 Materials for aluminium production

This International Standard specifies a method for the dissolution of aluminium oxide primarily used for the production of aluminium, by means of attack by hydrochloric acid under pressure in a sealed borosilicate glass tube, in order to obtain a test solution for certain determinations.

The method is not applicable to the preparation of test solutions for the determination of silicon, sodium or boron, owing to the possibility of extraction of these elements from the glass.

NOTE Hydrochloric acid may be replaced by another appropriate acid. In this case, the acid should be stated in the method of test of the impurity.