美国NIST-认证标准物质/认证参考材料/CRM定义
Certified Reference Material (CRM) – Reference material characterized by a metrologically valid procedure for one or more specified properties, accompanied by a certificate that provides the value of the specified property, its associated uncertainty, and a statement of metrological traceability 美国NIST
- The concept of value includes qualitative attributes such as identity or sequence. Uncertainties for such attributes may be expressed as probabilities.
- Metrologically valid procedures for the production and certification of reference materials are given in, among others, ISO Guides 34 and 35.
- ISO Guide 31 gives guidance on the contents of certificates.
- VIM has an analogous definition (ISO/IEC Guide 99:2007, 5.14).
(ISO Guide 30:1992/Amd 1:2008)
认证标准物质（CRM）/认证参考材料（CRM）-以一个或多个特定属性的计量有效程序为特征的参考材料，并附有提供属性的价值、相关不确定度和计量可追溯性说明的证书。
1.价值的概念包括定性属性，如身份或序列。这些属性的不确定性可以表示为概率。
2. ISO Guides 34 and 35中给出了标准物质生产和认证的计量有效程序。 CRM定义
3. ISO Guide 31给出了证书内容的指导。
4.VIM具有类似的定义(ISO/IEC Guide 99:2007, 5.14).。 （ISO指南30:1992/Amd 1-2008）