International Standard
ISO 7404-3:2025
Coal — Methods for petrographic analysis — Part 3: Method of determining maceral group composition
Reference number
ISO 7404-3:2025
Edition 4
2025-10
Preview
ISO 7404-3:2025
87002
No disponible en español
Publicado (Edición 4, 2025)

ISO 7404-3:2025

ISO 7404-3:2025
87002
Idioma
Formato
CHF 67

Resumen

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.

Informaciones generales

  •  : Publicado
     : 2025-10
    : Norma Internacional publicada [60.60]
  •  : 4
     : 8
  • ISO/TC 27/SC 5
    73.040 
  • RSS actualizaciones

¿Tiene alguna duda?

Consulte nuestras Ayuda y asistencia