ChinaAutoRegs\uff5cGB 1495-2002 \u82f1\u6587\u7248\u7ffb\u8bd1 \u6c7d\u8f66\u52a0\u901f\u884c\u9a76\u8f66\u5916\u566a\u58f0\u9650\u503c\u53ca\u6d4b\u91cf\u65b9\u6cd5
\nLimits and Measurement Methods for Noise Emitted by Acceleration Motor Vehicles<\/p>\n
\n1 SCOPE<\/p>\n
This standard specifies the limits for noise emitted by accelerating newly produced vehicles.
\nThis standard specifies the measure methods for noise emitted by accelerating newly produced vehicles.
\nThis standard applies to the categories M and N motor vehicles.<\/p>\n
2 NORMATIVE REFERENCES<\/p>\n
The following standards contain provisions which, through reference in this text, constitute provisions of this standard. At time of publication, the editions indicated were valid. All standards are subject to revision, and parties to agreements based on this standard are encouraged to investigate the possibility of applying the most recent editions of the standards indicated below.<\/p>\n
GB 3785-83 Electric, sonic properties and measuring methods for sound level meters
\nGB\/T 15173-94 Sound calibrators
\nGB\/T 12534-90 Motor vehicles – General rules of road test method
\nISO 10844-1994 Acoustics – Specification of test tracks for the purpose of measuring noise emitted by road vehicles
\nISO 10534-1996 Acoustics – Determination of sound absorption coefficient and impedance in impedance tubes – Method using standing wave ratio 3
\nGB\/T 17692-1999 Measurement methods of net power for automotive engines<\/p>\n
3 DEFINITIONS<\/p>\n
For the purpose of this standard, the following terms and definitions apply.<\/p>\n
***********************************************<\/span> ChinaAutoRegs\uff5cGB 1495-2002 \u82f1\u6587\u7248\u7ffb\u8bd1 \u6c7d\u8f66\u52a0\u901f\u884c\u9a76\u8f66 … \u7ee7\u7eed\u9605\u8bfb
\u73b0\u6210\u8bd1\u6587\uff0c\u5230\u6b3e\u5373\u53d1\u3002<\/span>
\u4efb\u53d6\u6837\u9875\u9a8c\u8bc1\u8bd1\u6587\u8d28\u91cf\u3002<\/span>
\u514d\u8d39\u63d0\u4f9b\u6b63\u89c4\u589e\u503c\u7a0e\u53d1\u7968\u3002<\/span>
\u8bf7\u8054\u7cfb\u624b\u673a\/\u5fae\u4fe1: 133-0649-6964\/Email: standardtrans@foxmail.com \u8d2d\u4e70\u5b8c\u6574\u8bd1\u6587\u3002<\/span>
\u4e13\u4e1a\u6e90\u4e8e\u4e13\u6ce8|\u820d\u543e\u4e88\u8a00\u6807\u51c6\u7ffb\u8bd1\/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":"