摘要
标准物质是室内环境检测的保证,其在有效期内的准确性是量值溯源的基础。通过代用t检验法和En数法对标准物质的期间核查进行统计分析,确保所使用标准物质的有效性。
Standard substance is the guarantee of indoor environment measuring, veracity of standard substance within the period of its validity is the basis of magnitude. Used substitution method and exponential method, statistical analyzed the regular inspection of standard substance, to ensure validity of standard substance.
出处
《工程质量》
2009年第4期72-73,共2页
Construction Quality
关键词
标准物质
期间核查
standard substance
regular inspection
