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EN ISO 2039-2:1999

Current

Current

The latest, up-to-date edition.

Plastics - Determination of hardness - Part 2: Rockwell hardness (ISO 2039-2:1987)

Published date

23-06-1999

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Committees responsible
National foreword
1 Scope and field of application
2 References
3 Principles
4 Apparatus
5 Test specimen
6 Conditioning
7 Procedure
8 Expression of result
9 Test report
Annex A - Determination of Rockwell-alpha hardness
Bibliography
Annex ZA - Normative references to international
           publications with their relevant European
           publications

Specifications of a method for the determination of the indentation hardness of plastics by means of the Rockwell hardness tester using the Rockwell M, L and R hardness scales. The Rockwell hardness number is derived from the net increase in depth of impression as the load on an indentor is increased from a fixed minor load to a major load and then returned to the same minor load. For materials having high creep and recovery, the time-factors involved in application of the major and minor loads have a considerable effect on the results of the measurements.

Committee
CEN/TC 249
DocumentType
Standard
PublisherName
Comite Europeen de Normalisation
Status
Current

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