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ISO 622:2025

ISO 622:2025

ISO 622:2025 Coal and coke - Determination of phosphorus - Reduced molybdophosphate photometric method

standard byInternational Organization for Standardization , 07/01/2025

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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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Published:

07/01/2025

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1 file , 1 Byte

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This product is restricted and cannot be purchased in the following countries Ukraine, Russia, Belarus

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