ISO 2865:1973
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Aluminium oxide primarily used for the production of aluminium — Determination of boron content — Curcumin spectrophotometric method
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01-12-1973
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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.
| DocumentType |
Standard
|
| Pages |
5
|
| ProductNote |
This standard also refer to ISO/R 802
|
| PublisherName |
International Organization for Standardization
|
| Status |
Current
|
| Standards | Relationship |
| BS 4140-19:1986 | Identical |
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