Aktívna norma | Vydaná: 02.07.1987

ISO 2039-2:1987-ed.2.0

Plastics — Determination of hardness — Part 2: Rockwell hardness
(Plastiques — Détermination de la dureté — Partie 2: Dureté Rockwell)

Dostupné jazyky: Anglicky, Francúzsky

Dostupné prevedenie: Elektronické PDF, Tlačené

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Podrobné informácie

Označenie: ISO 2039-2:1987-ed.2.0

Dátum vydania: 02.07.1987

Stránok: 5

Krajina: Medzinárodná technická norma

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Anotácia

Description / Abstract: 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.

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