ISO 5932:1980
$12.35
Boric acid, boric oxide and disodium tetraborates for industrial use — Determination of cobalt content — 2- nitroso-1- naphthol photometric method
| Published By | Publication Date | Number of Pages |
| ISO | 1980-11 | 6 |
Describes a method applicable to products having cobalt contents equal to or greater than 0,1 mg/kg. The principle of determination is based on dissolution of a test portion, formation of the coloured cobalt 2-nitrose-1-naphtol complex, extraction with chloroform and photometric measurement at a wavelength of about 530 nm.
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