ISO 2039-2:1987

Plastics — Determination of hardness — Part 2: Rockwell hardness

Datum objavljivanja: 2. 7. 1987.

Опште информације

Trenutna faza: 90.92 Effective date: 20. 11. 2024.

Inicijator: ISO

Pripada: ISO/TC 61/SC 2

Vrsta: Međunarodni standard

ICS: 83.080.01

Jezik: francuski engleski

Kupovina

Status: Objavljen

PDF

Papir

PDF i papir

Jezik

Jezik na kome želite da primite dokument.

Apstrakt

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.