NORMSERVIS s.r.o.

ISO 2039-2:1987-ed.2.0

Plastics — Determination of hardness — Part 2: Rockwell hardness

NORMA vydaná dňa 2.7.1987

Anglicky -
Elektronické PDF (57.70 EUR)
Anglicky -
Tlačené (57.70 EUR)


Francúzsky -
Elektronické PDF (57.70 EUR)
Francúzsky -
Tlačené (57.70 EUR)

The information about the standard:

Designation standards: ISO 2039-2:1987-ed.2.0
Publication date standards: 2.7.1987
The number of pages: 5
Approximate weight : 15 g (0.03 lbs)
Country: International technical standard
Kategória: Technické normy ISO

Annotation of standard text ISO 2039-2:1987-ed.2.0 :

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.