This standard was last reviewed and confirmed in 2022. Therefore this version remains current.
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.
Status: PublishedPublication date: 2016-11
Edition: 2Number of pages: 6
Technical Committee: ISO/TC 27/SC 5 Methods of analysis
- ICS :
- 75.160.10 Solid fuels
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A standard is reviewed every 5 years
Stage: 90.92 (To be revised)
Will be replaced byUnder development
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