Norm

NEN-ISO 3384-2:2012 en

Gevulkaniseerde of thermoplastische rubber - Bepaling van de spanningsvermindering onder druk - Deel 2: Met temperatuurcyclus

52,53

Over deze norm

Status Definitief
Aantal pagina's 12
Commissie Rubber
Gepubliceerd op 01-11-2012
Taal Engels
This part of ISO 3384 specifies two methods for determining the decrease in counterforce exerted by a test piece of vulcanized or thermoplastic rubber which has been compressed to a constant deformation and then undergoes temperature cycling. Method A: The temperature is cycled at intervals between a high temperature for ageing and a low temperature for checking the sealing force at this low temperature. Method B: The temperature is cycled continuously between a high temperature and a low temperature to introduce thermal stress in the test piece. The counterforce is determined by means of a continuous-measurement system. Two forms of test piece are permitted: cylindrical test pieces and rings. Different shapes and sizes of test piece give different results, and comparison of results should be limited to test pieces of similar size and shape. The use of ring test pieces is particularly suitable for the determination of stress relaxation in liquid environments.

Details

ICS-code 83.060
Nederlandse titel Gevulkaniseerde of thermoplastische rubber - Bepaling van de spanningsvermindering onder druk - Deel 2: Met temperatuurcyclus
Engelse titel Rubber, vulcanized or thermoplastic - Determination of stress relaxation in compression - Part 2: Testing with temperature cycling

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