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ISO 622:2016

Solid mineral fuels — Determination of phosphorus content — Reduced molybdophosphate photometric method

Nov 18, 2016
95.99 Withdrawal of Standard   Jun 25, 2025

General information

95.99     Jun 25, 2025

ISO

ISO/TC 27/SC 5

International Standard

75.160.10  

English  

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Scope

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.

Life cycle

PREVIOUSLY

WITHDRAWN
ISO 622:1981

NOW

WITHDRAWN
ISO 622:2016
95.99 Withdrawal of Standard
Jun 25, 2025

REVISED BY

PUBLISHED
ISO 622:2025

National adoptions

SSH ISO 622:2016  
DPS

Solid mineral fuels — Determination of phosphorus content — Reduced molybdophosphate photometric method

60.60 Standard published

DPS/KT 19 more