lyt1276-1998-割灌机声功率级的测定.pdf

《lyt1276-1998-割灌机声功率级的测定.pdf》由会员上传分享，免费在线阅读，更多相关内容在行业资料-天天文库。

1、免费标准网(www.freebz.net)B95备案号:2094-1998LY中华人民共和国林业行业标准LY/T1276一1998idtISO10884:1995割灌机声功率级的测定Brush-cutters-Determinationofsoundpowerlevels1998一09一22发布1998一12一01实施国家林业局发布免费标准网(www.freebz.net)无需注册即可下载免费标准网(www.freebz.net)1,Y/T1276一1998目次前言·············””·“····”·”·······”·”·”·······“······，···

2、”····”··“··.....................................·一IIS()前言·····”·”····”·············”····“·“···········”·“····“·”·”·········”·······“······“·“⋯⋯1ISO引言······”··························”·······”··”·········”·······“······”··“”···············”·”·”··⋯1范围········”·⋯⋯‘···········，·······”····“·“

3、···，······“·”···“·“·”，·”“·“二‘，”.·“·”，二‘”·⋯“12弓I用标准············，·，···”·······，··”·····“·········”·，·，·，·········“·”······，·”·····“·····”·”⋯⋯”13定义·······”······················，·····················““····”·“·......................“··，····”·⋯14声功率级的测定··········“·························“····

4、·····““····”··““·”···”··········⋯⋯15设置和操作条件························“·······，.········““·····················“”····”·”····““⋯36数据记录············”·”····························“··，·”·········“·”··········”·····“·“···”··“········“·47试验报告···”···”····“···············”···”················”··“···

5、··”·”·”··““···“·”········””·48声功率级的表示和验证“.........................................................................................5免费标准网(www.freebz.net)无需注册即可下载免费标准网(www.freebz.net)Lv/T1276一1998前言本标准等同采用国际标准ISO10884:1995《以内燃机为动力的手持便挽式割灌机和割草机声功率级的测定》。声功率级是机械噪声的两项重要参数之一。另一参数是测定点上的声压级，它可采用GL

6、l/T14178-19934割灌机操作者耳旁噪声侧定方法》测定。本标准由国家林业局提出。本标准由全国林业机械标准化技术委员会归口。本标准起草单位:南京林业大学。本标准主要起草人:周克宁、周永钊、郑加强免费标准网(www.freebz.net)无需注册即可下载免费标准网(www.freebz.net)LY/T1276一1998ISO前言ISO(国际标准化组织)是一个世界范围的国际标准团体(ISO全体成员)联合会。国际标准的准备工作通常是通过ISO技术委员会落实。每一个在某一学科已建立的技术委员会中有关的成员国都有权利出席委员会。与ISO有联系的国际组织、政府和非政府机构也参

7、加了这项工作。IS()与国际电工委员会(IEC)在电工标准化的所有领域有着密切的联系。由技术委员会制定的国际标准草案通过成员国传阅后进行投票表决。一个国际标准的颁布至少需要75%以上的成员国投票赞成。国际标准ISO10884由ISO/TC23技术委员会(农林用拖拉机和机械设备)中的SC17手持便携式林业机械分委员会与ISO/TC43技术委员会(声学)中的SC1噪声分委员会共同制定。本国际标准的附录A给出了有关信息。标准分享网www.bzfxw.com免费下载免费标准网(www.freebz.net)无需注册即可下载免费标准网(