AS/NZS 1050.21:1994
Methods for the analysis of iron and steel - Determination of cobalt content (spectrophotometric method)

Standard No.

AS/NZS 1050.21:1994

Release Date

1994

Published By

Standard Association of Australia （SAA）

Status

Withdraw

Replace By

AS/NZS 1050.21:1994(R2016)

Latest

AS/NZS 1050.21:1994(R2016)

Scope

Specifies a spectrophotometric method for the determination of cobalt content up to 12% in all grades of iron and steel containing less than 10.0% 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.

AS/NZS 1050.21:1994 history

• 0000 AS/NZS 1050.21:1994(R2016)
• 1994 AS/NZS 1050.21:1994 Methods for the analysis of iron and steel - Determination of cobalt content (spectrophotometric method)