ISO 3119:1976
Boric acid, boric oxide and disodium tetraborates for industrial use — Determination of chromium content — Diphenylcarbazide photometric method
OVERVIEW
Alkaline fusion of a test portion by sodium carbonate and subsequent neutralization by sulphuric acid. Measurement of the absorption of the complex formed by chromium and diphenylcarbazide at a wavelength of abour 540 nm after adding sodium azide for elimination of the colour caused by manganese.
COMMENTS
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PRODUCT DETAILS
| Status | Withdrawn - 03 Jan 2024 |
|---|---|
| Edition | 1976 |
| No. of Pages | 3 |
| ICS Classification | 71.060.01 Inorganic chemicals in general |
| Committee | ISO/TC 47 |
| Available for Purchase | For sale in Singapore only |
| Adoption | ISO |