ASTM D7808-12
测定过程流材料用过程流分析仪的现场精度的标准实施规程

Standard Practice for Determining the Site Precision of a Process Stream Analyzer on Process Stream Material

被代替

ASTM D7808-12 发布历史

ASTM D7808-12由美国材料与试验协会 US-ASTM 发布于 2012。

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ASTM D7808-12 测定过程流材料用过程流分析仪的现场精度的标准实施规程的最新版本是哪一版？

最新版本是 ASTM D7808-22 。

ASTM D7808-12 发布之时，引用了标准

• ASTM D3764 过程流量分析仪系统确认的标准实施规范
• ASTM D6122 多工艺红外分光光度计确认的标准实施规范
• ASTM D6299 应用统计质量保证和控制制图技术评估分析测量系统性能的标准实施规程
• ASTM D6708 旨在测量材料相同性能的两种测试方法之间的预期一致性的统计评估和改进的标准实践
• ASTM D7235 使用相关ASTM标准实践在分析仪和主要试验方法结果之间建立线性相关关系的标准指南
• ASTM D7278 分析仪样品系统滞后时间预测的标准指南
• ASTM D86 石油产品蒸馏的标准试验方法

ASTM D7808-12的历代版本如下：

• 2022年 ASTM D7808-22 在工艺流材料上测定工艺流分析仪现场精度的标准实施规程
• 2018年 ASTM D7808-18 在工艺流材料上测定工艺流分析仪现场精度的标准实施规程
• 2012年 ASTM D7808-12 测定过程流材料用过程流分析仪的现场精度的标准实施规程

 

4.1 The analyzer site precision is an estimate of the variability that can be expected in a UAR or a PPTMR produced by an analyzer when applied to the analysis of the same material over an extended time period.

4.2 For applications where the process analyzer system results are required to agree with results produced from an independent PTM, a mathematical function is derived that relates the UARs to the PPTMRs. The application of this mathematical function to an analyzer result produces a predicted PPTMR. For analyzers where the mathematical function, that is, a correlation, is developed by D7235, the analyzer site precision of the UARs is a required input to the computation.

4.3 After the correlation relationship between the analyzer results and primary test method results has been established, a probationary validation (see D3764 and D6122) is performed using an independent but limited set of materials that were not part of the correlation activity. This probationary validation is intended to demonstrate that the PPTMRs agree with the PTMRs to within user-specified requirements for the analyzer system application. The analyzer site precision is a required input to the probationary validation procedures.

4.3.1 If the process stream analyzer system and the primary test method are based on the same measurement principle(s), or, if the process stream analyzer system uses a direct and well-understood measurement principle that is similar to the measurement principle of the PTM then validation is done via D3764. Practice D3764 also applies if the process stream analyzer system uses a different measurement technology from the PTM, provided that the calibration protocol for the direct output of the analyzer does not require use of the PTM.

4.3.2 If the process stream analyzer system utilizes an indirect or mathematically modeled measurement principle such as chemometric or multivariate analysis techniques where PTMRs are required for the development of the chemometric or multivariate model, then validation of the analyzer is done using Practice D6122.

4.3.3 Both the D3764 and D6122 validation practices utilize the statistical methodology of Practice D6708 to conduct the probationary validation. This methodology requires that the site precision for the PTM and the analyzer site precision be available.

4.4 The procedures described herein also serve as the basis for a process analyzer quality cont......

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标准号

ASTM D7808-12

发布

2012年

发布单位

美国材料与试验协会

替代标准

ASTM D7808-18

当前最新

ASTM D7808-22

 

 

引用标准

ASTM D3764 ASTM D6122 ASTM D6299 ASTM D6708 ASTM D7235 ASTM D7278 ASTM D86

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