NBN EN ISO 4545-3 : 2006
Current
Current
The latest, up-to-date edition.
METALLIC MATERIALS - KNOOP HARDNESS TEST - PART 3: CALIBRATION OF REFERENCE BLOCKS
Published date
12-01-2013
Publisher
Foreword
1 Scope
2 Normative references
3 Manufacture of the block
4 Calibration machine
5 Calibration procedure
6 Number of indentations
7 Uniformity of hardness
8 Marking
9 Validity
Annex A (informative) Adjustment of Kohler illumination systems
Annex B (informative) Uncertainty of measurement of
hardness-reference blocks
Bibliography
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