{"id":897,"date":"2020-08-11T17:13:55","date_gmt":"2020-08-11T09:13:55","guid":{"rendered":"https:\/\/www.chinaautoregs.com\/?p=897"},"modified":"2024-08-06T11:09:31","modified_gmt":"2024-08-06T03:09:31","slug":"gb-15742-2019-%e8%8b%b1%e6%96%87%e7%89%88-english-%e7%bf%bb%e8%af%91-%e6%9c%ba%e5%8a%a8%e8%bd%a6%e7%94%a8%e5%96%87%e5%8f%ad%e7%9a%84%e6%80%a7%e8%83%bd%e8%a6%81%e6%b1%82%e5%8f%8a%e8%af%95%e9%aa%8c","status":"publish","type":"post","link":"https:\/\/www.chinaautoregs.com\/?p=897","title":{"rendered":"GB 15742-2019\u82f1\u6587\u7248\u7ffb\u8bd1 \u673a\u52a8\u8f66\u7528\u5587\u53ed\u7684\u6027\u80fd\u8981\u6c42\u53ca\u8bd5\u9a8c\u65b9\u6cd5"},"content":{"rendered":"

ChinaAutoRegs\uff5cGB 15742-2019 \u82f1\u6587\u7248 \u673a\u52a8\u8f66\u7528\u5587\u53ed\u7684\u6027\u80fd\u8981\u6c42\u53ca\u8bd5\u9a8c\u65b9\u6cd5
\nPerformance Requirements and Test Methods of Horn for Motor Vehicles<\/p>\n


\n1 SCOPE<\/p>\n

This standard specifies the technical requirements and test methods of electric and pneumatic horns for motor vehicles, and the performance requirements and test methods of horn installed on the vehicle.
\nThis standard applies to the motor vehicles of categories M, N and L.
\nNote: Category L motor vehicles includes the mopeds of Category L1 and L2.<\/p>\n

2 NORMATIVE REFERENCES<\/p>\n

The following referenced documents are indispensable for the application of this document. For dated references, only the editions cited apply. For undated references, the latest editions of the normative document (including any amendments) apply.
\nGB\/T 3241 Electroacoustics – Octave-band and fractional-octave-band filters
\nGB\/T 3785.1 Electroacoustics – Sound level meters – Part 1: Specifications<\/p>\n

3 \u6027\u80fd\u8981\u6c42\u53ca\u8bd5\u9a8c\u65b9\u6cd5<\/p>\n

3.1 \u6027\u80fd\u8981\u6c42
\n3.1.1 \u4e00\u822c\u8981\u6c42
\n\u5587\u53ed\u5e94\u53d1\u51fa\u8fde\u7eed\u800c\u5747\u5300\u7684\u58f0\u54cd\u3002 \u5bf9\u4e8e\u6c14\u52a8\u548c \u7535-\u6c14 \u52a8\u5587\u53ed,\u4ece \u5587\u53ed\u521a\u88ab \u63a8 \u52a8 \u7684 \u77ac \u95f4 \u81f3 \u58f0 \u538b \u7ea7 \u8fbe \u52303.1.2\u6240\u89c4\u5b9a\u7684\u58f0\u538b\u7ea7\u7684\u65f6\u95f4\u4e0d\u5e94\u8d85\u8fc70.2s\u3002
\n3.1.2 \u58f0\u538b\u7ea7
\n3.1.2.1 \u57283.2.3.1\u6240\u89c4\u5b9a\u7684\u6761\u4ef6\u4e0b,\u8ddd\u79bb\u5587\u53ed2 m \u5904\u7684 A \u8ba1\u6743\u58f0\u538b\u7ea7\u5e94\u6ee1\u8db3:
\na) \u8f7b\u4fbf\u6469\u6258\u8f66\u5e94\u4e0d\u5c0f\u4e8e90dB(A),\u4e14\u4e0d\u5927\u4e8e115dB(A);
\nb) \u529f\u7387\u4e0d\u5927\u4e8e7kW \u7684\u6469\u6258\u8f66\u7528\u5587\u53ed\u5e94\u4e0d\u5c0f\u4e8e95dB(A),\u4e14\u4e0d\u5927\u4e8e115dB(A);
\nc) M\u3001N \u7c7b\u6c7d\u8f66\u548c\u529f\u7387\u5927\u4e8e 7kW \u7684\u6469\u6258\u8f66\u7528\u5587\u53ed\u5e94\u4e0d\u5c0f\u4e8e105dB(A),\u4e14\u4e0d\u5927\u4e8e118dB(A)\u3002
\n3.1.2.2 \u57283.2.3.2\u6240 \u89c4\u5b9a\u7684\u6761\u4ef6\u4e0b,\u6c14 \u52a8\u7684\u548c \u7535-\u6c14 \u52a8\u5587\u53ed\u5728\u8ddd\u79bb\u5587\u53ed 2 m \u5904\u7684 A \u8ba1\u6743\u58f0\u538b\u7ea7\u4e0d\u5e94\u8d85 \u8fc7125dB(A)\u3002
\n3.1.2.3 \u5728\u9891\u7387\u4e3a1800 Hz~3550 Hz\u9891\u5e26\u5185\u7684\u603b\u58f0\u538b\u7ea7\u5e94\u5927 \u4e8e\u9891\u7387\u8d85\u8fc7 3550 Hz\u7684 \u6bcf\u4e00\u5206\u91cf\u7684\u58f0 \u538b\u7ea7\u3002
\n3.1.2.4 \u5bf9\u7528\u4e8e M\u3001N \u7c7b\u6c7d\u8f66\u548c\u529f\u7387\u5927\u4e8e 7kW \u7684\u6469\u6258\u8f66\u7684\u5587\u53ed\u53ef\u4ee5\u7528\u4e8e\u529f\u7387\u4e0d\u5927\u4e8e 7kW \u7684\u6469\u6258\u8f66 \u4e0a,\u5bf9\u7528\u4e8e\u529f\u7387\u4e0d\u5927\u4e8e7kW \u7684\u6469\u6258\u8f66\u7684\u5587\u53ed\u53ef\u4ee5\u7528\u4e8e\u8f7b\u4fbf\u6469\u6258\u8f66\u4e0a\u3002
\n3.1.2.5 \u5728\u91c7\u7528\u591a\u97f3\u5587\u53ed\u65f6,\u82e5\u5176\u4e2d\u5404\u58f0\u54cd\u53d1\u5c04\u5355 \u5143\u80fd\u5355\u72ec\u8d77\u4f5c\u7528,\u5219 \u6bcf\u4e00\u5355\u5143\u5355\u72ec\u5de5\u4f5c\u65f6,\u5e94 \u80fd\u7b26\u5408
\n3.1.2.2\u30013.1.2.3\u548c3.1.2.4\u7684\u89c4\u5b9a,\u5168\u90e8\u5355\u5143\u540c\u65f6\u5de5\u4f5c\u65f6,\u5176\u603b\u58f0\u538b\u7ea7\u4e0d\u5e94\u8d85\u8fc73.1.2.1\u89c4\u5b9a\u7684\u6700\u9ad8\u503c\u3002
\n3.1.3 \u8010\u4e45\u6027
\n3.1.3.1 \u8f7b\u4fbf\u6469\u6258\u8f66\u548c\u529f\u7387\u4e0d\u5927\u4e8e7kW \u7684\u6469\u6258\u8f66\u7528\u5587\u53ed\u4e3a10000\u6b21\u3002
\n3.1.3.2 M\u3001N \u7c7b\u6c7d\u8f66\u548c\u529f\u7387\u5927\u4e8e7kW \u7684\u6469\u6258\u8f66\u7528\u5587\u53ed\u4e3a50000\u6b21\u3002
\n3.1.3.3 \u8010\u4e45\u6027\u8bd5\u9a8c\u540e\u5587\u53ed\u5e94\u7b26\u54083.1.1\u30013.1.2.2\u548c3.1.2.3\u7684\u89c4\u5b9a,\u5141\u8bb8\u58f0\u538b\u7ea7\u6bd4\u8bd5\u9a8c\u524d\u4e0b\u964d5dB(A)\u3002
\n3.2 \u8bd5\u9a8c\u65b9\u6cd5
\n3.2.1 \u8bd5\u9a8c\u73af\u5883
\n3.2.1.1 \u5587\u53ed\u7684\u8bd5\u9a8c\u5728\u6d88\u58f0\u5ba4\u5185\u8fdb\u884c,\u4e5f\u5141\u8bb8\u5728 \u534a\u6d88\u58f0\u5ba4\u6216\u5f00\u9614\u573a\u5730\u4e0a (\u89c1 \u9644\u5f55 A)\u8fdb \u884c\u3002 \u5728\u5f00\u9614\u573a\u5730 \u4e0a\u8bd5\u9a8c\u65f6,\u80cc\u666f\u566a\u58f0\u548c\u98ce\u566a\u58f0\u5e94\u6bd4\u88ab \u6d4b\u91cf\u5587\u53ed\u7684\u58f0\u538b\u7ea7\u81f3\u5c11\u4f4e 10dB(A),\u8bd5 \u9a8c\u5e94\u5728\u5929\u6c14\u826f\u597d\u65f6\u8fdb\u884c\u3002 \u9664\u6709\u7279\u6b8a\u89c4\u5b9a\u5916,\u8bd5\u9a8c\u65f6\u73af\u5883\u6e29\u5ea6\u5e94\u4e3a23 \u2103\u00b15 \u2103\u3002
\n3.2.1.2 \u8bd5\u9a8c\u65f6,\u9664\u89c2\u5bdf\u4eea\u8868\u4eba\u5458\u5916,\u5176\u4ed6\u4eba\u5458 \u4e0d\u5e94\u5728\u5587\u53ed\u548c\u4f20\u58f0\u5668\u9644\u8fd1\u505c\u7559\u3002 \u89c2\u5bdf\u4eea\u8868\u65f6,\u4e0e \u88ab\u6d4b\u58f0 \u538b\u7ea7\u65e0\u5173\u7684\u6307\u9488\u6446\u52a8\u5e94\u5ffd\u7565\u4e0d\u8ba1\u3002
\n3.2.2 \u8bd5\u9a8c\u4eea\u5668
\n3.2.2.1 \u58f0\u538b\u7ea7\u7684\u6d4b\u91cf\u5e94\u91c7\u7528\u7b26\u5408 GB\/T3785.1 \u89c4\u5b9a\u7684\u4e00\u7ea7\u7cbe\u5ea6\u7684\u58f0\u7ea7\u8ba1\u8fdb\u884c\u3002 \u6d4b\u91cf\u65f6\u5e94\u91c7\u7528\u5feb\u901f \u65f6\u95f4\u5e38\u6570\u201cF\u201d,\u603b\u58f0\u538b\u7ea7\u7684\u6d4b\u91cf\u4f7f\u7528\u201cA\u201d\u8ba1\u91cf\u6321,\u57fa\u51c6\u58f0\u538b\u4e3a20\u03bcPa\u3002
\n3.2.2.2 \u58f0\u97f3\u7684\u9891\u8c31\u7528\u58f0\u97f3\u4fe1\u53f7\u7684\u5085\u91cc\u53f6\u53d8\u6362\u6765\u6c42\u5f97\u3002 \u5141\u8bb8\u6309\u7167 GB\/T3241 \u89c4\u5b9a\u91c7\u7528 1\/3 \u500d\u9891\u7a0b\u6ee4
\n\u6ce2\u5668\u3002\u5bf9\u4e8e\u4e2d\u5fc3\u9891\u73872500 Hz\u65f6\u7684\u58f0\u538b\u7ea7,\u5e94\u901a\u8fc71\/3\u4e2d\u5fc3\u9891\u73872000Hz\u30012500Hz\u548c3150Hz\u7684\u58f0 \u538b\u5747\u65b9\u503c\u6765\u6c42\u53d6,\u901a\u5e38\u53ea\u7528\u5085\u91cc\u53f6\u53d8\u6362\u3002
\n3.2.2.3 \u7535\u6c14\u6d4b\u91cf\u4eea\u8868\u7684\u7cbe\u5ea6\u4e3a0.5\u7ea7\u3002
\n3.2.3 \u8bd5\u9a8c\u6761\u4ef6
\n3.2.3.1 \u7535\u5587\u53ed\u8bd5\u9a8c\u6761\u4ef6\u4e3a:
\na) \u5bf96V\u300112V\u300124 V \u6807 \u79f0 \u7535 \u538b,\u8bd5 \u9a8c \u7535 \u538b \u7531 \u7535 \u6e90 \u8f93 \u51fa \u7aef \u6d4b \u5f97,\u5206 \u522b \u53d6 6.5 V\u00b10.1 V\u300113 V\u00b1 0.1V\u300126V\u00b10.2V;
\nb) \u5982\u679c\u91c7\u7528\u6574\u6d41\u7535\u6e90\u8fdb\u884c\u8bd5\u9a8c,\u5728 \u5587\u53ed\u5de5\u4f5c\u65f6,\u4ece \u7535\u6e90\u63a5\u7ebf\u7aef\u4e0a\u6d4b\u5f97\u7684\u7535\u538b\u4ea4\u6d41\u6210\u5206\u5e94\u4e0d\u5927\u4e8e
\n0.1V(\u5cf0\/\u5cf0\u503c);
\nc) \u5305\u62ec\u63a5\u5934\u548c\u63a5\u89e6\u7535\u963b\u5728\u5185\u7684\u63a5\u7ebf\u7535\u963b\u4e3a: \u6807\u79f0\u7535\u538b6V:\u7535\u963b\u503c\u22640.05\u03a9; \u6807\u79f0\u7535\u538b12V:\u7535\u963b\u503c\u22640.10\u03a9; \u6807\u79f0\u7535\u538b24V:\u7535\u963b\u503c\u22640.20\u03a9\u3002
\n3.2.3.2 \u6c14\u52a8\u548c\u7535-\u6c14\u52a8\u5587\u53ed\u5e94\u5728\u5236\u9020\u5382\u89c4\u5b9a\u7684\u6c14\u538b\u6216\u7535\u538b\u6761\u4ef6\u4e0b\u8fdb\u884c\u3002
\n3.2.4 \u8bd5\u9a8c\u65f6\u5587\u53ed\u7684\u5b89\u88c5
\n3.2.4.1 \u5587\u53ed\u5e94 \u6309 \u5236 \u9020 \u5382 \u89c4 \u5b9a \u7684 \u5b89 \u88c5 \u65b9 \u5f0f \u7262 \u56fa \u5730 \u5b89 \u88c5 \u5728 \u91d1 \u5c5e \u57fa \u67b6 \u4e0a,\u57fa \u67b6 \u7684 \u8d28 \u91cf \u81f3 \u5c11 \u5e94 \u4e3a \u5587 \u53ed \u768410\u500d,\u4e14\u4e0d\u5c0f\u4e8e30kg\u3002
\n3.2.4.2 \u5587\u53ed\u5e94\u4e0e\u4f20\u58f0\u5668\u4fdd\u6301\u540c\u4e00\u9ad8\u5ea6,\u4e14\u9ad8\u5ea6\u5e94\u57281.15 m~1.25 m \u4e4b\u95f4\u3002\u4f20\u58f0\u5668\u6700\u5927\u7075\u654f\u5ea6\u7684\u4e2d\u5fc3 \u7ebf\u5e94\u4e0e\u5587\u53ed\u7684\u6700\u9ad8\u58f0\u538b\u7ea7\u65b9\u5411\u91cd\u5408\u5728\u4e00\u8d77\u3002
\n3.2.4.3 \u4f20\u58f0\u5668\u819c\u7247\u4e0e\u5587\u53ed\u58f0\u97f3\u51fa\u53e3\u5e73\u9762\u76f8\u8ddd\u4e3a 2 m\u00b10.01 m\u3002 \u5f53\u5587\u53ed\u6709\u591a\u4e2a\u58f0\u51fa\u53e3\u65f6,\u4ee5 \u5176\u4e2d\u6700\u9760 \u8fd1\u4f20\u58f0\u5668\u7684\u58f0\u51fa\u53e3\u5e73\u9762\u4e3a\u51c6\u3002
\n3.2.5 \u4e00\u822c\u8981\u6c42\u8bd5\u9a8c
\n\u57283.2.1~3.2.4\u89c4\u5b9a\u7684\u6761\u4ef6\u4e0b,\u4f7f\u5587\u53ed\u8fde\u7eed\u53d1\u58f0\u65f6\u95f4\u4e0d\u8d85\u8fc730s,\u68c0 \u67e5\u5587\u53ed\u7684\u8fde\u7eed\u53d1\u58f0\u6027\u80fd\u53ca\u6c14\u52a8\u548c\u7535-\u6c14\u52a8\u5587\u53ed\u7684\u8d77\u52a8\u6027\u80fd\u5e94\u7b26\u54083.1.1\u7684\u89c4\u5b9a\u3002
\n3.2.6 \u58f0\u538b\u7ea7\u8bd5\u9a8c
\n\u57283.2.1~3.2.4\u89c4\u5b9a\u7684\u6761\u4ef6\u4e0b,\u68c0\u67e5\u5587\u53ed\u7684\u58f0\u538b\u7ea7\u5e94\u7b26\u54083.1.2\u7684\u89c4\u5b9a\u3002
\n3.2.7 \u8010\u4e45\u6027\u8bd5\u9a8c
\n3.2.7.1 \u8bd5\u9a8c\u6761\u4ef6
\n\u5587\u53ed\u8bd5\u9a8c\u5e94\u5728\u4e0b\u5217\u6761\u4ef6\u4e0b\u8fdb\u884c:
\na) \u8bd5\u9a8c\u65f6\u7684\u73af\u5883\u6e29\u5ea6\u4e3a15 \u2103~30 \u2103;
\nb) \u8bd5\u9a8c\u5982\u5728\u6d88\u58f0\u5ba4 \u6216 \u534a \u6d88 \u58f0 \u5ba4 \u4e2d \u8fdb \u884c,\u6d88 \u58f0 \u5ba4 \u6216 \u534a \u6d88 \u58f0 \u5ba4 \u5e94 \u786e \u4fdd \u5587 \u53ed \u5728 \u8bd5 \u9a8c \u671f \u95f4 \u70ed \u91cf \u7684 \u6b63 \u5e38 \u6d88\u6563;
\nc) \u8bd5\u9a8c\u65f6\u5e94\u4ee5\u7ea610 m\/s\u7684\u6c14\u6d41\u51b7\u5374\u5587\u53ed\u3002
\n3.2.7.2 \u8bd5\u9a8c\u65b9\u6cd5
\n\u5587\u53ed\u7684\u8010\u4e45\u6027\u8bd5\u9a8c\u4ee5\u9e23\u53eb1s,\u4f11\u606f4s\u7684\u5468\u671f\u8fdb\u884c,\u8bd5\u9a8c\u4e2d\u4e0d\u51c6\u8bb8\u5bf9\u5587\u53ed\u8fdb\u884c\u8c03\u6574\u3002<\/p>\n

4 \u88c5\u8f66\u6027\u80fd\u8981\u6c42\u53ca\u8bd5\u9a8c\u65b9\u6cd5<\/p>\n

4.1 \u6027\u80fd\u8981\u6c42
\n4.1.1 \u5b89\u88c5\u5728\u673a\u52a8\u8f66\u4e0a\u7684\u5587\u53ed,\u5e94\u7b26\u5408\u7b2c3\u7ae0\u5587\u53ed\u7684\u6027\u80fd\u8981\u6c42\u53ca\u8bd5\u9a8c\u65b9\u6cd5\u7684\u89c4\u5b9a\u3002
\n4.1.2 \u5587\u53ed\u5e94\u88c5\u4e8e\u673a\u52a8\u8f66\u8f86\u7684\u524d\u90e8,\u5176\u58f0\u538b\u7ea7\u5e94\u6ee1\u8db3:
\na) \u5bf9\u8f7b\u4fbf\u6469\u6258\u8f66,\u5e94\u4e0d\u5c0f\u4e8e75dB(A),\u4e14\u4e0d\u5927\u4e8e112dB(A);
\nb) \u5bf9\u529f\u7387\u4e0d\u5927\u4e8e7kW \u7684\u6469\u6258\u8f66,\u5e94\u4e0d\u5c0f\u4e8e83dB(A),\u4e14\u4e0d\u5927\u4e8e112dB(A);
\nc) \u5bf9 M\u3001N \u7c7b\u6c7d\u8f66\u548c\u529f\u7387\u5927\u4e8e7kW \u7684\u6469\u6258\u8f66,\u5e94\u4e0d\u5c0f\u4e8e87dB(A),\u4e14\u4e0d\u5927\u4e8e112dB(A)\u3002
\n4.2 \u8bd5\u9a8c\u65b9\u6cd5
\n4.2.1 \u8bd5\u9a8c\u73af\u5883\u53ca\u8bd5\u9a8c\u4eea\u5668
\n\u8bd5\u9a8c\u73af\u5883\u53ca\u8bd5\u9a8c\u4eea\u5668\u5e94\u7b26\u54083.2\u7684\u6709\u5173\u89c4\u5b9a\u3002
\n4.2.2 \u4eea\u5668\u7684\u5b89\u88c5
\n\u6d4b\u91cf\u4eea\u5668\u7684\u4f20\u58f0\u5668\u5e94\u653e\u7f6e\u5728\u63a5\u8fd1\u8f66\u8f86\u4e2d\u5fc3\u7684\u7eb5\u5411\u5e73\u9762\u7684\u4f4d\u7f6e\u5904,\u5e76 \u5e94\u8003\u8651\u4e0b\u5217\u56e0\u7d20\u5bf9\u6d4b\u91cf\u7ed3\u679c\u7684 \u5f71\u54cd:
\na) \u5c06\u5587\u53ed\u5b89\u88c5\u5728\u8f66\u8f86\u4e0a\u7684\u56fa\u5b9a\u96f6\u4ef6; b) \u5587\u53ed\u5728\u673a\u52a8\u8f66\u8f86\u4e0a\u7684\u4f4d\u7f6e;
\nc) \u5587\u53ed\u5b89\u88c5\u652f\u67b6\u7684\u521a\u6027;
\nd) \u5bf9\u5587\u53ed\u58f0\u538b\u7ea7\u53ef\u80fd\u4ea7\u751f\u5f71\u54cd\u5e76\u5177\u6709\u5c4f\u853d\u4f5c\u7528\u7684\u8f66\u8f86\u524d\u90e8\u7ed3\u6784\u7684\u5f62\u72b6\u4e0e\u6750\u6599\u3002
\n4.2.3 \u58f0\u538b\u7ea7\u7684\u6d4b\u91cf\u6761\u4ef6<\/p>\n

\u58f0\u538b\u7ea7\u7684\u6d4b\u91cf\u5e94\u6ee1\u8db3\u4e0b\u5217\u6761\u4ef6:
\na) \u58f0\u538b\u7ea7\u7684\u6d4b\u91cf\u5e94\u5728\u8f66\u8f86\u524d\u65b97 m \u5904;
\nb) \u5e94\u5728\u79bb\u5730\u97620.5 m~1.5 m \u8303\u56f4\u5185\u6d4b\u5f97\u6700\u5927\u58f0\u538b\u7ea7;
\nc) \u6d4b\u91cf\u65f6,\u8f66\u8f86\u505c\u653e\u5728\u5c3d\u53ef\u80fd\u5e73\u5766\u7684\u7a7a\u5730\u4e0a;
\nd) \u5bf9\u76f4\u6d41\u63a8\u52a8\u5587\u53ed,\u53d1\u52a8\u673a\u5e94\u5173\u6389\u3002<\/p>\n

\u9644\u5f55 A
\n(\u89c4\u8303\u6027\u9644\u5f55)
\n\u534a\u6d88\u58f0\u5ba4\u53ca\u5f00\u9614\u573a\u5730\u7684\u8981\u6c42<\/p>\n

A.1 \u534a\u6d88\u58f0\u5ba4<\/p>\n

\u534a\u6d88\u58f0\u5ba4\u662f\u5730\u677f\u4e3a\u53cd\u5c04\u9762\u7684\u6d88\u58f0\u5ba4,\u4ee5\u6a21\u62df\u534a\u81ea\u7531\u7a7a\u95f4\u7684\u623f\u95f4\u3002<\/p>\n

A.2 \u5f00\u9614\u573a\u5730<\/p>\n

\u5f00\u9614\u573a\u5730\u53ef\u4ee5\u662f\u534a\u5f84\u4e3a50m \u7684\u7a7a\u5730\u3002\u7528\u6765\u8fdb\u884c\u6d4b\u91cf\u7684\u4e2d\u5fc3\u90e8\u5206\u534a\u5f84\u4e0d\u5c0f\u4e8e20m,\u5e94\u662f\u6c34\u5e73\u7684,\u5e76 \u7531\u6c34\u6ce5\u3001\u6ca5\u9752\u6216\u7c7b\u4f3c\u6750\u6599\u8986\u76d6,\u6ca1\u6709\u957f\u8349\u3001\u677e\u571f\u6216\u7070\u6e23\u3002<\/p>\n

A.3 \u8981\u6c42<\/p>\n

\u534a\u6d88\u58f0\u5ba4\u6216\u5f00\u9614\u573a\u5730,\u90fd\u5e94\u4fdd\u8bc1\u5728\u534a\u5f84\u5927\u4e8e5 m \u7684\u534a\u7403\u5185,\u6d4b \u91cf\u65b9\u5411\u53ca\u5587\u53ed\u548c\u4f20\u58f0\u5668\u7684\u9ad8\u5ea6\u4e0a,\u6d4b \u91cf\u5230\u7684\u6700\u5927\u9891\u7387\u58f0\u54cd,\u76f8\u5dee\u4e0d\u8d85\u8fc71dB(A)\u3002<\/p>\n

 <\/p>\n

\n

1\u3001\u73b0\u6210\u8bd1\u6587\uff0c\u5230\u6b3e\u5373\u53d1\u3002<\/span>
\n2\u3001\u4e0b\u5355\u524d\u53ef\u4efb\u53d6\u6837\u9875\u9a8c\u8bc1\u8bd1\u6587\u8d28\u91cf\u3002<\/span>
\n3\u3001\u514d\u8d39\u63d0\u4f9b\u6b63\u89c4\u666e\u901a\u589e\u503c\u7a0e\u6570\u7535\u53d1\u7968\u3002<\/span>
\n4\u3001\u8bf7\u8054\u7cfb\u624b\u673a\/\u5fae\u4fe1: 13306496964\/Email: standardtrans@foxmail.com \u83b7\u53d6\u5b8c\u6574\u8bd1\u6587\u3002<\/span>
\n5\u3001\u672c\u82f1\u6587\u8bd1\u672c\u4e3a\u7eaf\u4eba\u5de5\u4e13\u4e1a\u7cbe\u7ffb\u7248\u672c\uff0c\u4fdd\u8bc1\u8bed\u6cd5\u672f\u8bed\u51c6\u786e\u7387\u548c\u4e13\u4e1a\u5ea6\uff01<\/span>
\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 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 (GB, GB\/T, QC\/T, CNCA, CQC, CAV, etc.) 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 15742-2019 \u82f1\u6587\u7248 \u673a\u52a8\u8f66\u7528\u5587\u53ed\u7684\u6027 … \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":[3],"tags":[815,29,30,74,17,9,15,10,178,757,7,11,724,18,723,19,14],"class_list":["post-897","post","type-post","status-publish","format-standard","hentry","category-i","tag-cav","tag-cnca","tag-cqc","tag-gb-15742-2019","tag-gb-english","tag-gb-translated","tag-gb-t-english","tag-gb-t","tag-gb","tag-qc-t","tag-723","tag-19","tag-14"],"views":1331,"_links":{"self":[{"href":"https:\/\/www.chinaautoregs.com\/index.php?rest_route=\/wp\/v2\/posts\/897","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=897"}],"version-history":[{"count":5,"href":"https:\/\/www.chinaautoregs.com\/index.php?rest_route=\/wp\/v2\/posts\/897\/revisions"}],"predecessor-version":[{"id":6057,"href":"https:\/\/www.chinaautoregs.com\/index.php?rest_route=\/wp\/v2\/posts\/897\/revisions\/6057"}],"wp:attachment":[{"href":"https:\/\/www.chinaautoregs.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=897"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.chinaautoregs.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=897"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.chinaautoregs.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=897"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}