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SRPS H.B8.612:1979

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

Jul 30, 1979
Jul 30, 1979
95.99   Withdrawal of Standard   Jan 28, 2013

General information

95.99     Jan 28, 2013

ISS

H047

International Standard

71.100.10  

Serbian  

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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

WITHDRAWN
SRPS H.B8.612:1979
95.99 Withdrawal of Standard
Jan 28, 2013

Related project

Adopted from ISO 2865:1973