Norm

ISO 2865:1973 en

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

31,57

Over deze norm

Status Definitief
Aantal pagina's 5
Gepubliceerd op 01-12-1973
Taal Engels
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.

Details

ICS-code 71.100.10
Nederlandse titel Aluminium oxide primarily used for the production of aluminium - Determination of boron content - Curcumin spectrophotometric method
Engelse titel Aluminium oxide primarily used for the production of aluminium - Determination of boron content - Curcumin spectrophotometric method

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