90.93 Standard confirmed Nov 5, 2025
ISO
ISO/TC 29/SC 5 Grinding wheels and abrasives
International Standard
25.100.70 Abrasives
Published
ISO 9138:2015 specifies the apparatus and the method for sampling and splitting of a lot of abrasive grains, to be used in the comparative testing of uniformly produced abrasive grains.
WITHDRAWN
ISO 9138:1993
PUBLISHED
ISO 9138:2015
90.93
Standard confirmed
Nov 5, 2025