DS/ISO 622:1983
Solid mineral fuels. Determination of phosphorus content. Reduced molybdophosphate photometric method

Standard No.

DS/ISO 622:1983

Release Date

1983

Published By

Danish Standards Foundation

Latest

DS/ISO 622:1983

Scope

This International Standard specifies a reduced molyb-dophosphate photometric method for the determination of the total phosphorus content of hard coal, lignites and coke. Two methods for taking the phosphorus into solution are specified, namely extraction from the coal or coke ash with acid or by repeated oxidation of the coal or coke, by acid, to remove car-bonaceous matter.

DS/ISO 622:1983 history

• 1983 DS/ISO 622:1983 Solid mineral fuels. Determination of phosphorus content. Reduced molybdophosphate photometric method