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Norm
ISO 2039-2:1987
Ausgabedatum: 1987 07 02
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 s...
Gültig
Herausgeber:
International Organization for Standardization
Format:
Digital | 5 Seiten
Sprache:
Englisch
ICS
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.
ISO 2039-2:1981
1981 10 01
Plastics — Determination of hardness by the ball indentation method — Part 2: Rockwell hardness
Norm
