Phone: (011) 7541-421, 3409-301, 3409-335, 6547-293, 3409-310
E-mail: Standards sales: prodaja@iss.rs Education: iss-edukacija@iss.rs Information about standards: infocentar@iss.rs
Stevana Brakusa 2, 11030 Beograd
Main menu

ISO 7404-3:2025

Coal — Methods for petrographic analysis — Part 3: Method of determining maceral group composition

Oct 27, 2025

General information

60.60     Oct 27, 2025

ISO

ISO/TC 27/SC 5

International Standard

73.040  

English  

Buying

Published

Language in which you want to receive the document.

Scope

This document specifies a method for determining the proportions of the maceral groups (and the minerals, if desired) in coals. It is concerned only with determinations made on polished particulate blocks using incident white light. For lower-rank coals, the additional use of the fluorescence mode is necessary to identify liptinites.

Life cycle

PREVIOUSLY

WITHDRAWN
ISO 7404-3:2009

NOW

PUBLISHED
ISO 7404-3:2025
60.60 Standard published
Oct 27, 2025