ISO 7404-5:2009
p
ISO 7404-5:2009
42832
No disponible en español

Estado : Publicado (Para revisar)

Esta norma se revisó y confirmó por última vez en 2022. Por lo tanto, esta versión es la actual.
Esta norma será reemplazada por ISO/AWI 7404-5
es
Formato Idioma
std 1 96 PDF
std 2 96 Papel
  • CHF96
Convertir Franco suizo (CHF) a tu moneda

Resumen

ISO 7404-5:2009 specifies the methods for determining the reflectance of vitrinite of coals microcopically on the polished surfaces, immersed in oil. The methods are applicable to coals from single seams or coal blends covering the whole range of low-, medium- and high-rank coal.

Vitrinite reflectance measurements can be used to characterize the components within blends. Measures can be taken to correct for the vitrinite percentage within each of the components of the blend or to determine the proportion of components in a blend, particularly when the components have dissimilar vitrinite contents. This method necessitates the identification of vitrinite by the analyst.

Reflectance measurements on vitrinite obtained by interpreting the results from an automated system, are outside the scope of ISO 7404-5:2009.

Preview 

Previsualice esta norma en nuestra Plataforma de navegación en línea (OBP)

Informaciones generales

  •  : Publicado
     : 2009-10
    : Norma Internacional para revisar [90.92]
  •  : 3
     : 14
  • ISO/TC 27/SC 5
    73.040 
  • RSS actualizaciones

Ciclo de vida

Got a question?

Check out our FAQs

Customer care
+41 22 749 08 88

Opening hours:
Monday to Friday - 09:00-12:00, 14:00-17:00 (UTC+1)