BS 4140-19:1986

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Methods of test for aluminium oxide – Determination of boron content

Published By	Publication Date	Number of Pages
BSI	1986	12

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Categories: 71.100.10 - Materials for aluminium production, BSI

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Description

This International Standard specifies a curcumin spectrophotometric method for the determination of the boron content of aluminium oxide primarily used for the production of aluminium.

The method is applicable to boron contents, expressed as boron oxide (B₂O₃), greater than 0,000 6 % [i.e. 0,000 2 % expressed as boron (B)].

NOTE The sensitivity of the method, as may be gathered from the calibration curve, is in fact higher. In the case of a very low blank reading, and with sufficiently sensitive apparatus, the lower limit of application of the method may be extended to 0,000 08 % of boron oxide (B₂O₃), corresponding to 0,000 025 % of boron (B).

Additional information

Status	Under Review
Pages	12
Publication Date	1986-02-28
ISBN	0 580 15016 X
Standard Number	BS 4140-19:1986, ISO 2865-1973
Title	Methods of test for aluminium oxide – Determination of boron content
Identical National Standard Of	ISO 2865:1973
Descriptors	Chemical analysis and testing, Aluminium oxide, Boron, Calibration, Dimensions, Complexing methods, Test equipment, Distillation methods of analysis, Determination of content, Production metallurgy, Spectrophotometry, Specimen preparation
Publisher	BSI
Committee	W/-
ICS Codes	71.100.10 - Materials for aluminium production

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BS 4140-19:1986

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