ISO 7404-4:1988
w
ISO 7404-4:1988
14130

Abstract

This part of ISO 7404 applies only to determinations made on polished particular blocks using reflected white ligth. The examination is carried out by using reflected ligth microscope and point count procedure. The microlithotypes are identified from their maceral composition under an immersion medium. The proportions of the macerals are determined using a graticule having a grid with 20 points of intersection.


General information 

  •  :  Withdrawn
     : 1988-12
  •  : 1
     : 6
  •  : ISO/TC 27/SC 5 Methods of analysis
  •  :
    73.040 Coals

Life cycle


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)

Keep up to date with ISO

Sign up to our newsletter for the latest news, views and product information.