1.1 本规程描述了计划、实施和分析实验室间研究（ILS）结果的技术，目的是制定试验方法的精度声明。设计用于与实践结合使用 670加元 .本标准中使用的方法与实践中的方法一致 电子691 . 1.2 本规程不适用于旨在开发测试方法或评估两种或两种以上测试方法相对可变性的程序。参考实践 1067号 用于评估试验方法坚固性的程序。 1.3 尚未规定该做法的单位制。本规程中的尺寸量仅在计算示例中给出。 1.4 本标准并不旨在解决与其使用相关的所有安全问题（如有）。本标准的使用者有责任在使用前制定适当的安全、健康和环境实践，并确定监管限制的适用性。 1.5 本国际标准是根据世界贸易组织技术性贸易壁垒（TBT）委员会发布的《关于制定国际标准、指南和建议的原则的决定》中确立的国际公认标准化原则制定的。 =====意义和用途====== 4.1 本规程规定了规划和开展实验室间研究的要求，以获取数据，以制定试验方法的单操作员和多实验室精度声明。它包括在进行计算以制定精度声明之前评估数据一致性的方法。程序与实践中的程序兼容 电子691 . 4.2 从本规程中获得的ILS数据旨在根据规程制定编写单个操作员和多实验室精度声明的精度值 670加元 . 4.3 附录X1 提供了一个示例，以说明从ILS数据中获取测试方法精度值的计算。这可用于检查用户开发的电子表格，以进行计算。 4.4 附录X2 讨论了试验方法的实验室间研究所需的额外计算，包括作为程序的一部分制作试样。在这种情况下，需要考虑批次间的可变性。 4.5 附录X3 讨论了使用方差分析作为从ILS数据中获取精度值的替代方法。

1.1 This practice describes techniques for planning, conducting, and analyzing the results of an interlaboratory study (ILS) with the objective of developing the precision statement of a test method. It is designed to be used in conjunction with Practice C670 . The methods used in this standard are consistent with those in Practice E691 . 1.2 This practice is not intended for use in programs whose purpose is to develop a test method or to assess the relative variability of two or more test methods. Refer to Practice C1067 for procedures to evaluate the ruggedness of a test method. 1.3 The system of units for this practice has not been specified. Dimensional quantities in the practice are presented only in examples of calculations. 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee. ====== Significance And Use ====== 4.1 This practice provides requirements for planning and conducting an interlaboratory study to obtain data to develop single-operator and multilaboratory precision statements for a test method. It includes methods to evaluate data consistency before carrying out the calculations to develop the precision statement. The procedures are compatible with those in Practice E691 . 4.2 The ILS data obtained from this practice are intended for developing the precision values for writing single-operator and multilaboratory precision statements in accordance with Practice C670 . 4.3 Appendix X1 provides an example to illustrate the calculations to obtain the precision values of the test method from the ILS data. This may be used to check a user-developed electronic spreadsheet for carrying out the calculations. 4.4 Appendix X2 discusses the additional calculations required for an interlaboratory study of a test method that includes making test specimens as part of the procedure. In this case, batch-to-batch variability needs to be considered. 4.5 Appendix X3 discusses the use of analysis of variance as an alternative approach to obtain the precision values from the ILS data.