Norm

NEN-ISO 4897:1986 en

Harde schuimkunststoffen - Bepaling van de lineaire thermische uitzettingscoëfficiënt bij temperaturen beneden de omgevingstemperatuur

48,19

Over deze norm

Status Definitief
Aantal pagina's 10
Commissie Kunststoffen
Gepubliceerd op 01-03-1986
Taal Engels
This International Standard specifies two methods for determining the coefficient of linear thermal expansion of rigid cellular plastics at sub-ambient temperatures. Method A is the prefered method since it gives a value on a large sample at a chosen temperature which is more representative because of anisotropy, etc., of the material or product. In practice, difficulties may be encountered in accurately controlling the uniformity of the low temperature inside the test chamber at temperatures below -70 ° C. Should this be the case, Method B should be employed to obtain an "average" coefficient for the temperature interval between the cryogenic temperature and the ambient temperature.

Details

ICS-code 83.100
Nederlandse titel Harde schuimkunststoffen - Bepaling van de lineaire thermische uitzettingscoëfficiënt bij temperaturen beneden de omgevingstemperatuur
Engelse titel Rigid cellular plastics - Determination of the coefficient of linear thermal expansion at subambient temperatures

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