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ISO 5932:1980

Boric acid, boric oxide and disodium tetraborates for industrial use — Determination of cobalt content — 2- nitroso-1- naphthol photometric method

Nov 1, 1980
95.99   Withdrawal of Standard   May 27, 2002

General information

95.99     May 27, 2002

ISO

ISO/TC 47

International Standard

71.060.01  

French  

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Scope

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.

Life cycle

NOW

WITHDRAWN
ISO 5932:1980
95.99 Withdrawal of Standard
May 27, 2002

National adoptions

SRPS H.B8.359:1982  
ISS

Boric acid, boric oxide and disodium tetraborates for industrial use — Determination of cobalt content — 2- nitroso-1- naphthol photometric method

95.99   Withdrawal of Standard

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