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ISO 2865:1973

Aluminium oxide primarily used for the production of aluminium — Determination of boron content — Curcumin spectrophotometric method

Dec 1, 1973

General information

90.93     Jan 4, 2022

ISO

ISO/TC 226

International Standard

71.100.10  

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Published

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Scope

Applicable to products having boron oxide contents of more than 0.0006 % (m/m). With sufficiently sensitive apparatus, the lower limit of application may be extended to 0.00008 % (m/m). The test portion is dissolved in phosphoric acid. Separation of the boron by distillation as methyl borate. Formation of a red coloured complex between the boron and the curcumin reagent at pH 7. Spectrophotometric measurement of the complex at a wavelength of about 550 nm.

Life cycle

NOW

PUBLISHED
ISO 2865:1973
90.93 Standard confirmed
Jan 4, 2022

CORRIGENDA / AMENDMENTS

PUBLISHED
ISO 2865:1973/Cor 1:1991

National adoptions

SRPS H.B8.612:1979  
ISS

Aluminium oxide primarily used for the production of aluminium — Determination of boron content — Curcumin spectrophotometric method

95.99   Withdrawal of Standard

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