ISO 622:2016

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

Publication date: 18 nën 2016

General information

Current stage: 90.92 Effective date: 20 maj 2023

Originator: ISO

Owner: ISO/TC 27/SC 5

Type: International Standard

ICS: 75.160.10

Gjuha: anglisht

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Statusi: Publikuar

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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.