Methods for the analysis of iron and steel, Part 21: Determination of cobalt content – Spectrophotometric method

Published by	Publication Date	Number of Pages
AS/NZS	08/15/1994	4

Category: AS-NZS

Description

AS/NZS 1050.21 – Methods for the analysis of iron and steel, Part 21: Determination of cobalt content – Spectrophotometric method

Specifies a spectrophotometric method for the determination of cobalt content up to 12 percent in all grades of iron and steel containing less than 10.0 percent copper. The sample is dissolved in acid and nitroso-R-salt added. This forms a red-brown chromophore which is measured spectrophotometrically at 580 nm.