EN ISO 2039-2:1999

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

Publication date:   Dec 22, 2003

General information

60.60 Standard published   Jun 23, 1999


CEN/TC 249 Plastics

European Norm

83.080.10   Thermosetting materials



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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.

Life cycle


EN ISO 2039-2:1999
60.60 Standard published
Jun 23, 1999


Adopted from ISO 2039-2:1987 IDENTICAL