ISO 622:2025
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ISO 622:2025

Coal and coke
Determination of phosphorus

Summary

ISO 622:2016 specifies a reduced molybdophosphate 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 carbonaceous matter.

Notes

40.20 : Mise au vote du DIS: 12 semaines

Technical characteristics

Publisher International Organization for Standardization (ISO)
Publication Date 06/25/2025
Edition 3
Page Count 7
EAN ---
ISBN ---
Weight (in grams) ---

Replaces

Previous versions

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