Hivatkozási szám

MSZ EN ISO 2440:2020

Dokumentumazonosító

174752

Cím

Rugalmas és merev polimer habanyagok. Gyorsított öregítési vizsgálatok (ISO 2440:2019)

Angol cím

Flexible and rigid cellular polymeric materials. Accelerated ageing tests (ISO 2440:2019)

Alkalmazási terület

This document specifies, for flexible and rigid cellular polymeric materials, laboratory procedures which are intended to imitate the effects of naturally occurring reactions such as oxidation or hydrolysis by humidity. The physical properties of interest are measured before and after the application of the specified treatments. Test conditions are only given for open cellular latex, both open- and closed-cell polyurethane foams, and closed-cell polyolefin foams. Conditions for other materials will be added as required. The effect of the ageing procedures on any of the physical properties of the material can be examined, but those normally tested are either the elongation and tensile properties, or the compression or indentation hardness properties. These tests do not necessarily correlate either with service behaviour or with ageing by exposure to light. If desired, the ageing conditions contained in this document can be applied to composite structures containing any of the above types of cellular material. This can be helpful in the investigation of possible interactions between cellular materials and other substrates. Composite constructions can be in the form of complete finished products or representative small specimens cut there-from.

ICS

83.100 Habanyagok

Műszaki Bizottság

A szabvány nyelve

angol

Az érvényesség kezdete

2020-05-01

Forrás

idt EN ISO 2440:2019; idt ISO 2440:2019

Előd

MSZ EN ISO 2440:2000, MSZ EN ISO 2440:1999/A1:2010, MSZ EN ISO 2440:1999/A2:2015

Utód

Módosítás

SZK-közlemények

Kapcsolódó európai jogszabály

A szabvány

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