ISO 815-2-2008 硫化橡胶或热塑性橡胶.压缩永久变形的测定.第2部分_低温条件.pdf

标准号：ISO 815-2-2008
实施状态：作废
中文名称：硫化橡胶或热塑性橡胶.压缩永久变形的测定.第2部分:低温条件
英文名称：Rubber, vulcanized or thermoplastic - Determination of compression set - Part 2: At low temperatures
发布日期：2008-02
被替代标准：ISO 815-2-2014
代替标准：ISO 815-1991;ISO 815 Technical Corrigendum 1-1993;ISO/FDIS 815-2-2007
采用标准：DIN ISO 815-2-2010,IDT;DIN ISO 815-2-2009,IDT;BS ISO 815-2-2009,IDT;NF T46-011-2-2008,IDT
起草单位：ISO/TC 45
标准简介：This part of ISO 815 specifies a method for the determination of the compression set characteristics of
vulcanized and thermoplastic rubbers at low temperatures.
The method is intended to measure the ability of rubbers of hardness within the range 10 IRHD to 95 IRHD to
retain their elastic properties at specified temperatures after prolonged compression at constant strain
(normally ) under one of the alternative sets of conditions described. For rubber of nominal hardness
80 IRHD and above, a lower compression strain is used: for a nominal hardness from 80 IRHD to 89 IRHD
and for a nominal hardness from 90 IRHD to 95 IRHD.
NOTE When rubber is held under compression, physical or chemical changes can occur that prevent the rubber returning
to its original dimensions after release of the deforming force. The result is a set the magnitude of which depends on the time
and temperature of compression as well as on the time and temperature of recovery. At low temperatures, changes resulting
from the effects of glass hardening or crystallization become predominant and, since these effects are reversed by raising
the temperature, it is necessary for all measurements to be undertaken at the test temperature.
文件格式：PDF
文件大小：280.44KB
文件页数：14
（以上信息更新时间为：2019-11-22）



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