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ISO 622:2025

Coal and coke — Determination of phosphorus — Reduced molybdophosphate photometric method

Standard Details

This document specifies a reduced molybdophosphate photometric method for the determination of the total phosphorus mass fraction 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 carbonaceous matter.

General Information

Status : Published
Standard Type: Main
Document No: ISO 622:2025
Document Year: 2025
Pages: 7
Edition: 3

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ISO 622:2025

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