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ISO 2039-2:1987

Plastics — Determination of hardness — Part 2: Rockwell hardness

Jul 2, 1987

General information

90.92     Nov 20, 2024

ISO

ISO/TC 61/SC 2

International Standard

83.080.01  

French   English  

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Published

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Scope

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

PREVIOUSLY

WITHDRAWN
ISO 2039-2:1981

NOW

PUBLISHED
ISO 2039-2:1987
90.92 Standard to be revised
Nov 20, 2024

REVISED BY

IN_DEVELOPMENT
ISO/AWI 2039-2