Повучен
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.
ПОВУЧЕН
ISO 5932:1980
95.99
Повучен
27. 5. 2002.
Ispitivanje tehničke borne kiseline, tehničkog bor-oksida i tehničkih dinatrijum-tetraborata - Određivanje sadržaja kobalta - Fotometrijska metoda
95.99 Повучен