Norm

NEN-EN-ISO 2439:2007 Ontw. en

Soepele schuimrubbers en schuimkunststoffen - Bepaling van de hardheid (indeuktechniek)

  • Deze norm is ingetrokken sinds 29-01-2009

25,62

Over deze norm

Status Ingetrokken
Aantal pagina's 18
Commissie Kunststoffen
Gepubliceerd op 01-10-2007
Taal Engels
This International Standard specifies four methods for determination of indentation hardness and one method for determination of compressive deflection coefficient and hysteresis loss rate of flexible cellular materials. See Annex A. These five methods are applicable only to latex, urethane foam and PVC foam of the open cell type. The results obtained by these methods relate only to the test conditions specified and cannot, in general, be used directly for design purposes. Method A - Determination of the 40 %/30 s indentation hardness index. This gives a single indentation measurement for laboratory test purposes. Method B - Determination of the 25 %-40 %-65 %/30 s indentation hardness characteristics. This provides information about the shape of the hardness indentation curve. Method C - Determination of the 40 % indentation hardness check This is a quick procedure suitable for quality control testing. Method D - Determination of the 25 %/20 s low indentation hardness index. This is a quick procedure suitable as an inspection test. Method E - Determination of the compressive deflection coefficient and hysteresis loss rate This gives additional information about the load- bearing properties of materials.

Details

ICS-code 83.100
Nederlandse titel Soepele schuimrubbers en schuimkunststoffen - Bepaling van de hardheid (indeuktechniek)
Engelse titel Flexible cellular polymeric materials - Determination of hardness (indentation technique)
Vervangt
Vervangen door

Winkelwagen

Subtotaal:

Ga naar winkelwagen