RO
SR EN ISO 2039-2:2003
Plastics. Determination of hardness. Part 2: Rockwell hardness
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.
Status :
Valid
Approval date : 11/28/2003
Publish date : 1/9/2004
Number of pages : 14
ICS : 83.080.10 Thermosetting materials
Technical Committee : 108 - Plastics, codification and analysis methods
- Replaces STAS 8826-72
- Normative reference SR EN ISO 291:1999
- Normative reference SR ISO 48:1996
- Normative reference SR ISO 868:1995
- Normative reference SR EN ISO 2039-1:1999