{"id":1650,"date":"2021-03-29T16:12:55","date_gmt":"2021-03-29T08:12:55","guid":{"rendered":"https:\/\/www.chinaautoregs.com\/?p=1650"},"modified":"2024-08-05T15:12:52","modified_gmt":"2024-08-05T07:12:52","slug":"gb-t-5720-2008%e8%8b%b1%e6%96%87%e7%89%88-%e7%bf%bb%e8%af%91-english-o%e5%bd%a2%e6%a9%a1%e8%83%b6%e5%af%86%e5%b0%81%e5%9c%88%e8%af%95%e9%aa%8c%e6%96%b9%e6%b3%95-test-methods-for-rubber-o-rings","status":"publish","type":"post","link":"https:\/\/www.chinaautoregs.com\/?p=1650","title":{"rendered":"GB\/T 5720-2008\u82f1\u6587\u7248\u7ffb\u8bd1\/English O\u5f62\u6a61\u80f6\u5bc6\u5c01\u5708\u8bd5\u9a8c\u65b9\u6cd5 Test Methods for Rubber O-Rings"},"content":{"rendered":"

ChinaAutoRegs\uff5cGB\/T 5720-2008\u82f1\u6587\u7248\/\u7ffb\u8bd1\/English O\u5f62\u6a61\u80f6\u5bc6\u5c01\u5708\u8bd5\u9a8c\u65b9\u6cd5
\nTest Methods for Rubber O-Rings<\/p>\n

<\/p>\n

1 SCOPE<\/p>\n

This standard specifies the test methods for dimensional measurement, hardness, tensile property, hot-air accelerated aging, compression set at constant strain, corrosion test, liquid resistance, density, shrinkage rate, low temperature test, and compression stress relaxation, of solid vulcanized rubber O-rings.
\nThis standard is applicable to solid vulcanized rubber O-rings (hereinafter referred to as \u201cO-rings\u201d).<\/p>\n

2 NORMATIVE REFERENCES<\/p>\n

The following documents contain provisions which, through reference in this standard, constitute provisions of this standard. For dated references, subsequent amendments (excluding corrections) to, or revisions of, any of these publications do not apply. However, the parties who enter into agreement according to this part are encouraged to research whether the latest editions of these documents may be applied. For undated references, the latest edition referred to apply.
\nGB\/T 528-1998 Rubber, Vulcanized or Thermoplastic-Determination of Tensile Stress-Strain Properties (eqv ISO 37:1994)
\nGB\/T 533-1991 Rubber Vulcanized or Thermoplastic-Determination of Density (ISO 2781:2007, IDT)
\nGB\/T 1690-1992 Rubber, Vulcanized-Determination of the Effect of Liquids (neq ISO 1817)
\nGB\/T 2941-2006 Rubber-General Procedures for Preparing and Conditioning Test Pieces for Physical Test Methods (ISO 23529:2004, IDT)
\nGB\/T 3452.2-2007 Fluid Power Systems-O-rings-Part 2: Quality Acceptance Criteria (ISO 3601-3:2005, IDT)
\nGB\/T 3512-2001 Rubber, Vulcanized or Thermoplastic-Accelerated Ageing and Heat Resistance Tests-Air-oven Method (eqv ISO 188:1998)
\nGB\/T 6031-1998 Rubber, Vulcanized or Thermoplastic-Determination of Hardness (Hardness between 10IRHD and 100IRHD) (idt ISO 48:1994)
\nGB\/T 7758-2002 Rubber, vulcanized–Determination of Low-Temperature Characteristics-Temperature-Retraction Procedure (TR Test) (ISO 2927:1997, IDT)
\nGB\/T 7759-1996 Rubber, Vulcanized or Thermoplastic-Determination of Compression Set at Ambient Elevated or Low Temperatures (eqv ISO 815:1991)
\nGB\/T 13643-1992 Rubber, Vulcanized or Thermoplastic-Determination of Compression Stress Relaxation (Rings) (eqv ISO 6059:1987)
\nHG\/T 2369-1992 Rubber Plastic Tensile Tester Technical Conditions<\/p>\n

3 REQUIREMENTS FOR TEST SPECIMENS AND TEST CONDITIONS<\/p>\n

3.1 Requirements for Test Specimens<\/p>\n

3.1.1 Test specimens shall be prepared as specified in GB\/T 2941-2006.
\n3.1.2 The appearance quality of test specimens shall meet the requirements of GB\/T 3452.2-2007, Class N.
\n3.1.3 The test specimens used for the testing of hardness, tensile property, hot-air accelerated aging, compression set at constant strain, corrosion test, liquid resistance, density, shrinkage rate, low temperature test, and compression stress relaxation are detailed in sub-clauses 5.1.2, 5.2.2, 5.3.2, 5.4.2, 5.5.2, 5.6.2, 5.7.2, 5.8.2, and 5.9.2 of this standard, and GB\/T 13643-1992, 4.1.3.<\/p>\n

\n

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\n4\u3001\u8bf7\u8054\u7cfb\u624b\u673a\/\u5fae\u4fe1: 13306496964\/Email: standardtrans@foxmail.com \u83b7\u53d6\u5b8c\u6574\u8bd1\u6587\u3002<\/span>
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\n6\u3001\u4e13\u4e1a\u6e90\u4e8e\u4e13\u6ce8|ChinaAutoRegs \u59cb\u7ec8\u4e13\u6ce8\u4e8e\u6c7d\u8f66\u6807\u51c6\u7ffb\u8bd1\u9886\u57df\uff01<\/span>
\n7\u3001\u300c\u4e2d\u56fd\u6c7d\u8f66\u6807\u51c6\u8bd1\u6587\u5e93\u300d\u5df2\u6536\u5f55\u4e0a\u5343\u4e2a\u73b0\u884c\u6c7d\u8f66\u56fd\u5bb6\u6807\u51c6\u548c\u884c\u4e1a\u6807\u51c6\u7684\u82f1\u6587\u7248\u8bd1\u672c\uff0c\u6db5\u76d6\u4f20\u7edf\u71c3\u6cb9\u8f66\u3001\u65b0\u80fd\u6e90\u6c7d\u8f66\u548c\u6469\u6258\u8f66\u6807\u51c6\u5316\u4f53\u7cfb\uff01\u72ec\u5bb6\u6253\u9020\u5343\u4e07\u7ea7\u6c7d\u8f66\u4e13\u4e1a\u672f\u8bed\u5e93\u548c\u8bb0\u5fc6\u5e93\u3002<\/span><\/p>\n

1. The English Translation of this document (GB, GB\/T, QC\/T, CNCA, CQC, CAV, etc.) is readily available, and delivered immediately upon payment.<\/span>
\n2. You may request for sample pages to your preference before placing an order.<\/span>
\n3. Please contact standardtrans@foxmail.com for the complete PDF version in English.<\/span>
\n4. Almost all of Chinese automotive\/automobile standards, regulations and norms in effect have been included in our well-established database, providing one-stop, up-to-date, efficient and professional solution.<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"

ChinaAutoRegs\uff5cGB\/T 5720-2008\u82f1\u6587\u7248\/\u7ffb\u8bd1\/Engli … \u7ee7\u7eed\u9605\u8bfb →<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[26],"tags":[815,29,30,851,17,9,852,1071,15,34,10,178,757,38,1072,7,11,724,35,18,723,19,14],"class_list":["post-1650","post","type-post","status-publish","format-standard","hentry","category-vi","tag-cav","tag-cnca","tag-cqc","tag-gb-2024","tag-gb-english","tag-gb-translated","tag-gb-t-2024","tag-gb-t-5720-2008","tag-gb-t-english","tag-gb-t2021","tag-gb-t","tag-gb2021","tag-gbt-5720-2008","tag-gb","tag-hj","tag-qc-t","tag-723","tag-19","tag-14"],"views":1850,"_links":{"self":[{"href":"https:\/\/www.chinaautoregs.com\/index.php?rest_route=\/wp\/v2\/posts\/1650","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.chinaautoregs.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.chinaautoregs.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.chinaautoregs.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.chinaautoregs.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1650"}],"version-history":[{"count":3,"href":"https:\/\/www.chinaautoregs.com\/index.php?rest_route=\/wp\/v2\/posts\/1650\/revisions"}],"predecessor-version":[{"id":5776,"href":"https:\/\/www.chinaautoregs.com\/index.php?rest_route=\/wp\/v2\/posts\/1650\/revisions\/5776"}],"wp:attachment":[{"href":"https:\/\/www.chinaautoregs.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1650"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.chinaautoregs.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1650"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.chinaautoregs.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1650"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}