Methods for hardness test (Rockwell method) and for verification of hardness testing machines (Rockwell method).
STANDARD published on 30.6.1989
Designation standards: BS 891:1989
Note: WITHDRAWN
Publication date standards: 30.6.1989
The number of pages: 20
Approximate weight : 60 g (0.13 lbs)
Country: British technical standard
Category: Technical standards BS