ISO/DIS 622

Coal and coke — Determination of phosphorus — Reduced molybdophosphate photometric method ISO/DIS 622

General information

Current stage: 40.20 DIS ballot initiated: 12 weeks May 9, 2024

Originator: ISO

Owner: ISO/TC 27/SC 5 Methods of analysis

Type: International Standard

ICS: 73.040 Coals | 75.160.10 Solid fuels

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.

Life cycle

PREVIOUSLY

PUBLISHED
ISO 622:2016

NOW

IN_DEVELOPMENT
ISO/DIS 622
40.20 DIS ballot initiated: 12 weeks
May 9, 2024