1.1评估复合材料的化学成分、化学和物理性能以及复合和固化橡胶的测试通常可以通过一种或多种测试方法进行。当有一种以上的测试方法可用时，会出现两个问题:哪种测试方法对所评估的基础基本特性有更好（或最好）的响应或区分？哪种测试方法误差最小？这两个特性共同决定了测试方法的一种技术优点，即测试灵敏度。 1.2尽管如本规程所述，需要对测试灵敏度进行全面和详细的处理，但此处可以给出一个简化的概念定义。测试灵敏度是评估的基本特性的判别能力与测量误差或不确定度的比率，表示为标准偏差。判别能力越大，测试误差越低，测试灵敏度越好。借用电子学中的术语，这个比率经常被称为信号- 噪声比；与鉴别功率相对应的信号和与测试测量误差相对应的噪声。因此，本规程描述了如何评估橡胶制造业中使用的测试方法的测试灵敏度（通常定义为信噪比），这些方法测量典型的物理和化学特性，1.3中指出的例外情况除外。 1.3本规程不涉及以下应用中阈值限或最小检测限（MDL）的灵敏度主题:( 1. )复合材料的有意变化对测量的化合物性能或( 2. )低或微量成分水平的评估。最低检测限是单独标准的主题。 1.4 本标准并非旨在解决与其使用相关的所有安全问题（如有）。本标准的用户有责任在使用前制定适当的安全和健康实践，并确定监管限制的适用性。 1.4本惯例的内容如下: 部分 范围 1. 参考文件 2. 术语 3. 实践总结 4. 意义和用途 5. 测量过程 6. 测试灵敏度概念的开发（绝对和相对测试灵敏度、有限和扩展范围测试灵敏度、均匀和非均匀测试灵敏度） 7. 执行测试敏感性评估计划的步骤 8. 测试灵敏度评估报告 9 关键词 10 附录A1背景:线性回归分析的使用和测试灵敏度评估的精度 附录X1相对试验灵敏度评估的两个示例: 相对测试灵敏度:有限范围三次加工性测试 相对测试灵敏度:扩展范围顺应性与模量 附录X2——背景:简单分析测试的标度转换和绝对灵敏度推导

1.1 Testing to evaluate chemical constituents, chemical and physical properties of compounding materials, and compounded and cured rubbers may frequently be conducted by one or more test methods. When more than one test method is available, two questions arise: Which test method has the better (or best) response to or discrimination for the underlying fundamental property being evaluated? and Which test method has the least error? These two characteristics collectively determine one type of technical merit of test methods that may be designated as test sensitivity. 1.2 Although a comprehensive and detailed treatment, as given by this practice, is required for a full appreciation of test sensitivity, a simplified conceptual definition may be given here. Test sensitivity is the ratio of discrimination power for the fundamental property evaluated to the measurement error or uncertainty, expressed as a standard deviation. The greater the discriminating power and the lower the test error, the better is the test sensitivity. Borrowing from the terminology in electronics, this ratio has frequently been called the signal-to-noise ratio; the signal corresponding to the discrimination power and the noise corresponding to the test measurement error. Therefore, this practice describes how test sensitivity, generically defined as the signal-to-noise ratio, may be evaluated for test methods used in the rubber manufacturing industry, which measure typical physical and chemical properties, with exceptions as noted in 1.3. 1.3 This practice does not address the topic of sensitivity for threshold limits or minimum detection limits (MDL) in such applications as ( 1 ) the effect of intentional variations of compounding materials on measured compound properties or ( 2 ) the evaluation of low or trace constituent levels. Minimum detection limits are the subject of separate standards. 1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. 1.4 The content of this practice is as follows: Section Scope 1 Referenced Documents 2 Terminology 3 Summary of Practice 4 Significance and Use 5 Measurement Process 6 Development of Test Sensitivity Concepts(Absolute and Relative Test Sensitivity, Limited and Extended Range Test Sensitivity, Uniform and Nonuniform Test Sensitivity) 7 Steps in Conducting a Test Sensitivity Evaluation Program 8 Report for Test Sensitivity Evaluation 9 Keywords 10 Annex A1-Background on: Use of Linear Regression Analysis and Precision of Test Sensitivity Evaluation Appendix X1-Two Examples of Relative Test Sensitivity Evaluation: Relative Test Sensitivity: Limited Range-Three Processability Tests Relative Test Sensitivity: Extended Range-Compliance versus Modulus Appendix X2--Background on: Transformation of Scale and Derivation of Absolute Sensitivity for a Simple Analytical Test