NF EN 10109-1 : 1994
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
MATERIAUX METALLIQUES - ESSAI DE DURETE - PARTIE 1: ESSAI ROCKWELL (ECHELLES A,B,C,D,E,F,G,H,K) ET ESSAI SUPERFICIEL ROCKWELL (ECHELLES 15N, 30N, 45N, 15T, 30T ET 45T)
01-10-1999
12-01-2013
Foreword
0 Introduction
1 Scope
2 Normative references
3 Principle
4 Symbols and designations
5 Apparatus
6 Test piece
7 Procedures
8 Test report
Annex A (normative) Minimum thickness of the test piece
in relation to the Rockwell hardness
Annex B (normative) Corrections to be added to Rockwell
hardness values obtained on convex cylindrical
surfaces
Annex C (normative) Corrections to be added to Rockwell
hardness C scale values obtained on spherical
test surfaces of various diameters
Annex D (normative) Conventional HR30Tm test for thin
products
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