Resumen
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.
Informaciones generales
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Estado: PublicadoFecha de publicación: 1987-07Etapa: Norma Internacional confirmada [90.93]
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Edición: 2Número de páginas: 5
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Comité Técnico :ISO/TC 61/SC 2ICS :83.080.01
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Ciclo de vida
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Anteriormente
RetiradaISO 2039-2:1981
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Ahora