GBT18659-2002 封闭管道中导电液体流量的测量 电磁流量计的性能评定方法.pdf

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1、ics17.120.10N12中华人民共和国国家标准GB/T18659-2002idtISO9104:1991封闭管道中导电液体流量的测量电磁流量计的性能评定方法Measurementoffluidflowinclosedconduits-Methodsofevaluatingtheperformanceofelectromagneticflow-metersforliquids2002一02一22发布2002一08一01实施中华人民共和国发布国家质量监督检验检疫总局www.bzfxw.comGB/T18659-2002目次前言························

2、····，··。·······························，···········································⋯⋯tISO前言·········。···········。·································。··············································⋯⋯I引言··········。·············。········。·····················”·····································

3、···············。⋯m1范围·············。···································。·······················································⋯⋯12引用标准············。·························。···························································⋯⋯13定义········································。。···········

4、·······。··············。·····························⋯⋯24基本试验程序···································。······················································⋯⋯24.1一般要求·。·······················································································、····⋯⋯34.2安装·····。·····················

5、·。·········································································⋯⋯34.3试验液体···················。·························································。·················⋯⋯44.4试验环境条件······················································。··································⋯⋯44.5试验期间

6、正常校准条件······························································⋯⋯‘二‘·····⋯⋯54.6信号输出·，·。······················································································、····⋯⋯54.7零位校核···················································································。······、····⋯⋯5

7、4.8其他条件··················································。。·············。····························⋯⋯54.9流量计的校准—要求和方法·······················。·············································⋯⋯55影响量影响的评定···································。··················