gb-t 16921-2005 金属覆盖层覆盖层厚度测量x射线光谱法

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1、ICS25.220.20A29(G8中华人民共和国国家标准GB/T16921-2005/ISO3497:2000代替GB/T16921-1997金属覆盖层覆盖层厚度测量X射线光谱方法Metalliccoatings-Measurementofcoatingthickness-X-rayspectrometricmethods(ISO3497:2000,IDT)2005-10-12发布2006-04-01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GB/T16921--2005/1S03497:2000目次前言···············⋯⋯‘

2、’‘’‘1范围··⋯⋯””’二”””2术语和定义············，···········，，，·，····。。。，··································，·····························一13原理···························，·········，，··。。··································，·····························。，，，·24仪器，，，，，，···“····，，，，，，················】·····

3、··········，··】】】·········，···，，·，··1··1·····4⋯⋯55影响测量结果的因素·····，·····························，···································....................86仪器的校准，··。。··。。····································，，·····························、·。·········，··············，，，二107规程··················，，

4、，，··，，，。。····。。·············································‘······························⋯⋯128测量不确定度·，，，·，··。·。·。····································································，·，，，，。。。·········⋯⋯139测试报告···，，，··········‘·····························，·············，··············，，，

5、··，··，·····。·············⋯⋯13附录A(资料性附录)常见覆盖层测量的典型测量范围，················。·‘。·，，··，·，···················⋯⋯14参考文献·········“·················································，，·，··········4，·，···，·，·················⋯⋯15GB/T16921-2005/1SO3497:2000hit言本标准等同采用ISO3497:2000(E)(金属覆盖层覆盖层厚度测量X射线光谱方法)}

6、(英文版)。本标准按(;B/T1.1的编辑要求，根据ISO3497重新起草。本标准对应ISO3497作了如下修改:—取消了ISO3497的前言内容，重新起草r本标准前言;增加了“目次内容”;用“本标准’，代替“本国际标准”。本标准代替GB/T16921-1997《金属覆盖层覆盖层厚度测量X射线光谱方法》?本标准与GB/T16921-1997相比主要变化如下:—在范围中增加了警告;—在术语和定义中增加了基体材料、基体金属和基体的定义，且将归一化强度(1997年版的2.本版的2.4)的数学符号定义为二.(1997年版为In)，相应的数学关系式也随之改变;—在3.3.3能量色

7、散中，将波长和能量的关系式进行了修正;—在原理中，将其内容进行了重新排列，增加了3.5.3比率方法和3.7数学反卷积的描述;—对5.1.2随机误差的标准偏差、以及5.6覆盖层密度的公式进行了修正;—对5.16试样表面的倾斜度的影响，做了更精确的修正;一在仪器的校准中增加了6.1.5计算机模拟主要参数的无标样技术的描述;本标准的附录A为资料性附录本标准由中国机械工业联合会提出。本标准由全国金属与非金属覆盖层标准化技术委员会归口。本标准起草单位:机械工业表面覆盖层产品质量监督检测中心本标准起草人:姜新华、凌国伟、刘建国、钟立畅、宋智玲。本标准