NF EN ISO 3386-1
Polymeric materials, cellular flexible - Determination of stress-strain characteristics in compression - Part 1: Low-density materials
Covers the determination of material with a density up to 250 kg/m3. It also indicates a method for the calculation of the compression stress value of such materials. The compression stress/strain characteristic is a measure of the load-bearing properties of the material. Two formulas allow to calculate the results. Part 2 refers to high density materials. Constitutes a minor revision of the first edition (ISO 3386/1-1979).
Le présent document spécifie de nouvelles tolérances pour l'exactitude de mesure de la force et de l'épaisseur de la machine d'essai et des exigences complémentaires pour le conditionnement des éprouvettes.
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