ISO 805:1976
Aluminium oxide primarily used for the production of aluminium; Determination of iron content; 1,10- Phenanthroline photometric method

Standard No.

ISO 805:1976

Release Date

1976

Published By

International Organization for Standardization (ISO)

Latest

ISO 805:1976

Scope

Applicable to Fe contents, expressed as Fe2 O3 , equal to or more than 0.005 % (m/m). Specifies the preliminary reduction of iron (III) by means of hydroxylammonium chloride. Formation of the iron(II)-1,10-phenanthroline complex in a buffered (pH value between 3.5 and 4.2). Photometric measurement at a wavelength of about 510 nm. Replaces ISO Recommendation R 805/1968.

ISO 805:1976 history

• 1976 ISO 805:1976 Aluminium oxide primarily used for the production of aluminium; Determination of iron content; 1,10- Phenanthroline photometric method