ASTM D7235-16
利用相关ASTM标准实践确定分析仪和基本试验方法之间线性相关性的标准指南

Standard Guide for Establishing a Linear Correlation Relationship Between Analyzer and Primary Test Method Results Using Relevant ASTM Standard Practices

被代替

ASTM D7235-16 发布历史

ASTM D7235-16由美国材料与试验协会 US-ASTM 发布于 2016。

ASTM D7235-16在国际标准分类中归属于: 19.020 试验条件和规程综合。

ASTM D7235-16 发布之时，引用了标准

• ASTM D3606 气相色谱法测定成品摩托车和飞机汽油中苯和甲苯含量的试验方法
• ASTM D3764 过程流量分析仪系统确认的标准实施规范
• ASTM D4177 石油及石油产品的自动取样的标准实施规程
• ASTM D5191 石油产品蒸气压力的标准试验方法(小型法)
• ASTM D6122 多工艺红外分光光度计确认的标准实施规范
• ASTM D6277 使用中红外光谱仪测定火花点火发动机燃料中苯的标准试验方法
• ASTM D6299 应用统计质量保证和控制图表技术评估分析测量系统性能的标准实施规程
• ASTM D6624 用流分析仪数据测定一批工艺流材料的流量比例平均特性值（FPAPV）的标准实施规程
• ASTM D6708 测量材料相同特性的两种试验方法之间预期一致性的统计评定和改进的标准实施规程*， 2023-07-05 更新
• ASTM D7453 工艺流分析仪分析和工艺流分析仪系统验证用石油产品取样的标准实施规程
• ASTM D7808 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
• ASTM E1655 红外多元定量分析的标准实践*， 2023-07-05 更新

* 在 ASTM D7235-16 发布之后有更新，请注意新发布标准的变化。

ASTM D7235-16的历代版本如下：

• 2021年 ASTM D7235-21a 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
• 2021年 ASTM D7235-21 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
• 2016年 ASTM D7235-16 利用相关ASTM标准实践确定分析仪和基本试验方法之间线性相关性的标准指南
• 2014年 ASTM D7235-14 用相关ASTM标准实践规程确定分析仪和主要试验方法结果之间线性相关性的标准指南
• 2010年 ASTM D7235-10 使用ASTM相关标准规范建立分析仪与初步试验方法结果之间的线性相关关系的标准指南
• 2005年 ASTM D7235-05 用相关ASTM标准实施规程确定分析仪和主要试验方法结果之间线性相关性的标准指南

4.1 This guide is intended to be used in conjunction with Practice D3764 (Case 1) and Practice D6122 (Case 2). Methodology in this guide can be used to determine if a linear correlation can improve the performance of the total analyzer system in terms of its ability to predict the results that the PTM would have been if applied to the same material. This methodology, which is based on the same statistical data treatment as Practice D6708, is use to derive the parameters of the linear relationship and to assess the degree of improvement.

4.2 This guide provides developers or manufacturers of process stream analyzer systems with useful procedures for developing the capability of newly designed systems for industrial applications that require reliable prediction of measurements of a specific property by a primary test method of a flowing component or product.

4.3 This guide provides purchasers of process stream analyzer systems with some reliable options for specifying performance requirements for process stream analyzer systems that are used in applications requiring reliable prediction of measurements of a specific property by a primary test method of a flowing component or product.

4.4 This guide provides the user of a process stream analyzer system with useful information on the work process for establishing the PTM prediction relationship and prediction performance.

4.5 Prediction (correlation) relationship obtained in the application of this guide is applicable only to the material type and property range of the materials used to perform the study. Selection of the property levels and the compositional characteristics of the samples must be suitable for the application of the analyzer system. Users are cautioned against extrapolation of the prediction relationship beyond the material type and property range used to obtain the relationship.

4.6 The degree-of-agreement assessment promoted in this guide is based on the statistical principles articulated in Practice D6708, which is purely statistical in nature. No attempt is made in assessing the degree of similarity in the analytical technique between the process analyzer and the PTM; hence, results between the PTM and analyzer unit can be highly correlated, but their measurement principles may be completely different, and may not be the principal cause for correlation. Users are therefore cautioned that a high degree of correlation between results does not necessarily imply a high degree of similarity in the measurement principles; nor does it imply a similar degree of agreement can be expected in future measurements. In general, if sample-specific biases are detected, it suggests that the measurement principles may be different, and may affect the degree-of-agreement in future use of the scaling/bias-correction equation. Presence or absence of sample-specific effect can be used as a measure of the robustness of the correlation equation to sample composition or matrix differences.

4.7 Implementation of this guide requires that the......

标准号

ASTM D7235-16

发布

2016年

发布单位

美国材料与试验协会

替代标准

ASTM D7235-21

当前最新

ASTM D7235-21a

 

 

引用标准

ASTM D3606 ASTM D3764 ASTM D4177 ASTM D5191 ASTM D6122 ASTM D6277 ASTM D6299 ASTM D6624 ASTM D6708 ASTM D7453 ASTM D7808 ASTM E1655

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