ISO 5933:1980

Boric acid, boric oxide, disodium tetraborates and crude sodium borates for industrial use — Determination of total nickel content of boric acid, boric oxide and disodium tetraborates and the alkali-soluble nickel content of crude sodium borates — Furil alpha-dioxime photometric method

Specifies a method applicable to products in which the nickel content being determined exceeds 0,1 mg/kg. The principle of determination is based on dissolution of a test portion, formation of the coloured nickel furil -dioxime complex, extraction with chloroform and photometric measurement at a wavelength of about 435 nm.

OEN:

ISO

Langue:

English

Code(s) de l'ICS:

71.060.01

Statut:

Annulée

Date de Publication:

1980-10-31

Numéro Standard:

ISO 5933:1980