ISO 622:2025

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

OVERVIEW

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.

COMMENTS

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PRODUCT DETAILS

Status Current
Edition 2025
No. of Pages 7
ICS Classification 73.040 Coals
75.160.10 Solid fuels
Committee ISO/TC 27/SC 5
Available for Purchase For sale in Singapore only
Adoption ISO : 0