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Standard ISO 622:2025-ed.3.0 25.6.2025 preview

ISO 622:2025-ed.3.0

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

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STANDARD published on 25.6.2025


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The information about the standard:

Designation standards: ISO 622:2025-ed.3.0
Publication date standards: 25.6.2025
SKU: NS-1225335
The number of pages: 7
Approximate weight : 21 g (0.05 lbs)
Country: International technical standard
Category: Technical standards ISO

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The category - similar standards:

CoalsSolid fuels

Annotation of standard text ISO 622:2025-ed.3.0 :

Description / Abstract: 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.

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Latest update: 2025-07-11 (Number of items: 2 208 012)
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