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standard reference material
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standard reference material
Encyclopedia
理学
【试剂和试样】
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standard reference material
标准参考物质
经过权威机构认证的某些具有确定含量的组分,在实际样品定量测定中用作计算被测组分含量的直接或间接参照标准的一类物质。计量工作者通常将其称为参考物质;而标准化工作者则更习惯将其称为标准样品(简称标样)。是特性量值准确、均匀性和稳定性良好的计量标准,具有在时间上保持特性量值、在空间上传递量值的功能。通过使用标准物质,可以使实际测量结果获得量值溯源性。
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semistable scheme
semistable sheaf
semi-stable state
semistable vector bundle
semistandard skew tableau
semistandard tableau
semistandard Young tableau
semi-star
semi-stationary
semisterility
semi-stochastic matrix
semistor
semi-strict
semi strictly diagonally dominant matrix
semi-strictly diagonally dominant matrix
semi-strip
semi-strong
semi-strong efficient market
semi-strong extremum
semi-strong form efficiency
semi-strong linear element
semi-structural decision making
semi-structured data
semi-structured decision
semi-structured interviews
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