ISO 622:2025
International Standard
Current Edition
·
Approved on
25 June 2025
Coal and coke — Determination of phosphorus — Reduced molybdophosphate photometric method
ISO 622:2025 Files
English
7 Pages
Current Edition
30.32 BHD
ISO 622:2025 Scope
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.
Best Sellers
GSO 150-2:2013
Gulf Standard
Expiration dates for food products - Part 2 :
Voluntary expiration dates
BH GSO 150-2:2015
GSO 150-2:2013
Bahraini Standard
Expiration dates for food products - Part 2 :
Voluntary expiration dates
BH GSO 2055-1:2016
GSO 2055-1:2015
Bahraini Technical Regulation
HALAL FOOD - Part 1 : General Requirements
GSO 2055-1:2015
Gulf Technical Regulation
HALAL FOOD - Part 1 : General Requirements
Recently Published
ISO 3953:2025
International Standard
Metallic powders — Determination of tap density
ISO 24108-1:2025
International Standard
Grid square statistics and their applications — Part 1: Fundamental principle of grid square statistics
ISO 23333:2025
International Standard
Natural gas — Upstream area — Requirements and testing of slick water
ISO 1008:2025
International Standard
Photography — Unprocessed photographic papers — Sheet dimensions