亚洲中文久久精品无码WW16,亚洲国产精品久久久久爰色欲,人人妻人人澡人人爽欧美一区九九,亚洲码欧美码一区二区三区

本頁面標準信息均來源于網絡收集，或由參與標準制定的供應商提供，只作為參考使用，為確保測試結果的準確性、節省您的時間，如需ISO 1431-1-2012標準詳細信息或ISO 1431-1-2012具體測試方法，與我們技術人員聯系或給我們留言，我們將為您相關的技術支持。

ISO 1431-1-2012標準介紹

ISO 1431-1-2012簡介

ISO 1431-1是關于《塑膠、硫化橡膠或熱塑性橡膠耐臭氧龜裂》的測試方法，ISO 1431-1-2012是第五版發布，ISO 1431-1-2012取消并代替了第四版(ISO 1431-1:2004)，這是一種技術性修訂，主要添加了校準規程(附件B)并且提出了一套完整的簡單評定量表(附件C)。

它還包括修訂ISO 1431-1:2004 / AMD1:2009 。

ISO 1431由以下部分組成，主要關于橡膠，硫化或熱塑性-耐臭氧龜裂：

第1部分：靜態和動態應變測試

第3部分：實驗室試驗室中臭氧濃度測定的參考和替代方法

第2部分在第1部分的前修訂中以及與原版本ISO 1431-1-2004與第1部分結合。

ISO 1431-1-2012英文原文摘錄

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

▼ISO 1431-1-2012第三方檢測機構

ISO 1431-1-2012PDF資料

以上標準信息來自互聯網搜索整理，如需了解完整的ISO 1431-1-2012的信息或ISO 1431-1-2012標準解讀，歡迎詳詢。