ISO 1431-1-2012

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ISO 1431-1-2012简介

ISO 1431-1是关于《塑胶、硫化橡胶或热塑性橡胶耐臭氧龟裂》的测试方法，ISO 1431-1-2012是第五版发布，ISO 1431-1-2012取消并代替了第四版(ISO 1431-1:2004)，这是一种技术性修订，主要添加了校准规程(附件B)并且提出了一套完整的简单评定量表(附件C)。

它还包括修订ISO 1431-1:2004 / AMD1:2009 。

ISO 1431由以下部分组成，主要关于橡胶，硫化或热塑性-耐臭氧龟裂：

第1部分：静态和动态应变测试

第3部分：实验室试验室中臭氧浓度测定的参考和替代方法

第2部分在第1部分的前修订中以及与原版本ISO 1431-1-2004与第1部分结合。

ISO 1431-1-2012英文原文摘录

1 Scope

This part of ISO 1431 specifies procedures intended for use in estimating the resistance of vulcanized or thermoplastic rubbers to cracking when exposed, under static or dynamic tensile strain, to air containing a definite concentration of ozone and at a definite temperature in circumstances that exclude the effects of direct light.

Great caution is necessary in attempting to relate standard test results to service performance since the relative ozone resistance of different rubbers can vary markedly depending on the conditions, especially ozone concentration and temperature. In addition, tests are carried out on thin test pieces deformed in tension and the significance of attack for articles in service can be quite different owing to the effects of size and of the type and magnitude of the deformation. Explanatory notes on the nature of ozone cracking are given in Annex A.Reference and alternative methods for determining the ozone concentration are described in ISO 1431-3.

2 Normative references

The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.

ISO 37, Rubber, vulcanized or thermoplastic — Determination of tensile stress-strain properties

ISO 1431-3, Rubber, vulcanized or thermoplastic — Resistance to ozone cracking — Part 3: Reference and alternative methods for determining the ozone concentration in laboratory test chambers

ISO 18899:2004, Rubber — Guide to the calibration of test equipment

ISO 23529, Rubber — General procedures for preparing and conditioning test pieces for physical test methods