{"id":758,"date":"2020-08-11T09:47:30","date_gmt":"2020-08-11T01:47:30","guid":{"rendered":"https:\/\/www.chinaautoregs.com\/?p=758"},"modified":"2022-04-10T15:55:31","modified_gmt":"2022-04-10T07:55:31","slug":"gb-t-4760-1995%e8%8b%b1%e6%96%87%e7%89%88-english-%e7%bf%bb%e8%af%91-%e5%a3%b0%e5%ad%a6-%e6%b6%88%e5%a3%b0%e5%99%a8%e6%b5%8b%e9%87%8f%e6%96%b9%e6%b3%95acoustics-measurement-procedure-for-sil","status":"publish","type":"post","link":"https:\/\/www.chinaautoregs.com\/?p=758","title":{"rendered":"GB\/T 4760-1995\u82f1\u6587\u7248 \u7ffb\u8bd1\/\u58f0\u5b66 \u6d88\u58f0\u5668\u6d4b\u91cf\u65b9\u6cd5"},"content":{"rendered":"<p>ChinaAutoRegs\uff5cGB\/T 4760-1995\u82f1\u6587\u7248\/English\/\u7ffb\u8bd1\/\u58f0\u5b66 \u6d88\u58f0\u5668\u6d4b\u91cf\u65b9\u6cd5<br \/>\nAcoustics \u2013 Measurement Procedure for Silencers<\/p>\n<p><!--more--><br \/>\n1. SCOPE<\/p>\n<p>This Standard stipulates the measurement procedures and requirements for silencers. This includes the laboratory measurement method and the operational measurement method.<br \/>\nThese are mainly carried out to measure the silencer&#8217;s insertion loss, but the following may also be measured:<\/p>\n<p>\u2013 Noise flow noise power rate;<\/p>\n<p>\u2013 Silencer pressure loss and impedance parameters.<br \/>\nThis Standard applies to impedance-based piping silencers.<br \/>\n2. NORMATIVE REFERENCES<\/p>\n<p>GB 3102 Acoustics measurement units<\/p>\n<p>GB 3238 Acoustics measurement grades and reference quantity<\/p>\n<p>GB 3240 Commonly used wavelengths in acoustic measurement<\/p>\n<p>GB 3241 1\/1 and 1\/3 frequency multiplication wave filters used for sound and vibration analysis<\/p>\n<p>GB 3785 Electrical and sound characteristics and measurement methods of sound level meters<\/p>\n<p>GB 3947 Acoustics terminology<\/p>\n<p>GBJ 76 Reverberation echo timing measurement scope<\/p>\n<p>GB 6881 Acoustics \u2212 Sound source grade measurement \u2212 Echo chamber precision and working methods<\/p>\n<p>GB 6882 Acoustics \u2212 Sound source grade measurement \u2212 Sound-proof chamber and semi-sound-proof chamber precision method<\/p>\n<p>***********************************************<br \/>\n<span style=\"color: #0000ff;\">\u73b0\u6210\u8bd1\u6587\uff0c\u5230\u6b3e\u5373\u53d1\u3002<\/span><br \/>\n<span style=\"color: #0000ff;\">\u652f\u6301\u6837\u9875\u9a8c\u8bc1\u8d28\u91cf\u3002\u514d\u8d39\u63d0\u4f9b\u589e\u503c\u7a0e\u53d1\u7968\u3002<\/span><br \/>\n<span style=\"color: #0000ff;\">\u8bf7\u8054\u7cfb QQ: 564965870\/\u5fae\u4fe1: 13306496964\/Email: standardtrans@foxmail.com \u8d2d\u4e70\u5b8c\u6574\u8bd1\u6587(PDF\/Word)\u3002<\/span><br \/>\n<span style=\"color: #0000ff;\">\u4e13\u4e1a\u6e90\u4e8e\u4e13\u6ce8|ChinaAutoRegs \u59cb\u7ec8\u4e13\u6ce8\u4e8e\u673a\u52a8\u8f66\u6807\u51c6\u7ffb\u8bd1\uff01\u8fc4\u4eca\u4e3a\u6b62\u5df2\u7ffb\u8bd1\u4e0a\u5343\u4e2a\u56fd\u5185\u5916\u6c7d\u8f66\u6cd5\u89c4\u6807\u51c6\uff01\u72ec\u5bb6\u6253\u9020\u5343\u4e07\u7ea7\u6c7d\u8f66\u4e13\u4e1a\u672f\u8bed\u5e93\u548c\u8bb0\u5fc6\u5e93\u3002<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>ChinaAutoRegs\uff5cGB\/T 4760-1995\u82f1\u6587\u7248\/English\/ &hellip; <a href=\"https:\/\/www.chinaautoregs.com\/?p=758\">\u7ee7\u7eed\u9605\u8bfb <span class=\"meta-nav\">&rarr;<\/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":[3],"tags":[17,9,423,15,10,7,11,18,19,14],"class_list":["post-758","post","type-post","status-publish","format-standard","hentry","category-i","tag-gb-english","tag-gb-translated","tag-gb-t-4760-1995","tag-gb-t-english","tag-gb-t","tag-gb","tag-qc-t","tag-19","tag-14"],"views":1147,"_links":{"self":[{"href":"https:\/\/www.chinaautoregs.com\/index.php?rest_route=\/wp\/v2\/posts\/758","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=758"}],"version-history":[{"count":2,"href":"https:\/\/www.chinaautoregs.com\/index.php?rest_route=\/wp\/v2\/posts\/758\/revisions"}],"predecessor-version":[{"id":2889,"href":"https:\/\/www.chinaautoregs.com\/index.php?rest_route=\/wp\/v2\/posts\/758\/revisions\/2889"}],"wp:attachment":[{"href":"https:\/\/www.chinaautoregs.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=758"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.chinaautoregs.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=758"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.chinaautoregs.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=758"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}