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标准参考物质
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标准参考物质
Encyclopedia
理学
【试剂和试样】
释
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。
随便看
Aristotle's Syllogistic from the standpoint of Modern Formal Logic
Aristotle's view on government
Aristotle syllogistics
Aristotle wheel paradox
Aristotle, 公元前384—322
Aristotle (公元前384—前322)
Aristoxenus
Aritayaki
arithmetic
Arithmetica Infinitorum
arithmetical
Arithmetical Classic of the Gnomon and the Circular Paths of the Heaven
arithmetic algebra
arithmetic algebraic geometry
arithmetical hierarchy
arithmetically effective curve
arithmetically equivalent
arithmetically equivalent structures
arithmetically equivalent variety
arithmetically normal variety
arithmetical predicate
arithmetic and logic unit
arithmetic and logic unit, ALU
arithmetic average
arithmetic average deviation
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