GBT19494-2004煤炭机械化采样3个部分

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1、免费标准下载网(www.freebz.net)ICS73.040D21中华人民共和国国家标准GB/T19494.1-2004煤炭机械化采样第1部分:采样方法Mechanicalsamplingofcoal-Part1.Methodforsampling(ISO13909-1:2001Hardcoalandcoke-Mechanicalsampling-Part1:Generalintroduction,ISO13909-2:2001Hardcoalandcoke-Mechanicalsampling-Part2:Coal-Samp

2、lingfrommovingstreams,ISO13909-3:2001Hardcoalandcoke-Mechanicalsampling-Part3:Coal-Samplingfromstationarylots,NEQ)2004-04-30发布2004-10-01实施中华人民共和国国家质量监督检验检疫总局发布中国国家标准化管理委员会免费标准下载网(www.freebz.net)GB/T19494.1-2004目次前言······················································

3、····························································⋯⋯11范围·················································。·····························································⋯⋯I2规范性引用文件································································.·..····....·..·

4、...............⋯⋯13术语和定义······································································································⋯⋯14采样的一般原则和精密度························································.........................⋯⋯45采样方案的建立···································

5、······················································....·⋯⋯56移动煤流采样方法···········································································.·····.·..·......⋯⋯107静止煤采样方法··························································································.··

6、...⋯⋯148煤样的包装和标识·····································································.·.··..............·..·.⋯⋯179采样报告·········································································································⋯⋯18附录A(资料性附录)采样单元数和每一采样单元子样数计算举例············

7、········⋯⋯，’····⋯⋯19附录B(规范性附录)质量基采样设备的评定····························································⋯⋯21免费标准下载网(www.freebz.net)GB/T19494.1-2004前言GB/T19494(煤炭机械化采样》分为三个部分:—第1部分:采样方法;第2部分:煤样的制备;第3部分:精密度测定和偏倚试验。本部分为GB/T19494的第I部分，对应于ISO13909-1;2001《硬煤和焦炭机械化采样第1部分:绪言》,ISO

8、13909-2;2001《硬煤和焦炭机械化采第2部分:移动煤流采样》和ISO13909-3:2001《硬煤和焦炭机械化采样第3部分:静止批煤采样》。本部分与前述三标准的一致性程度为非等效，主要差异如下:—按照中国人的思维逻辑，对标准的结构、层次做了