ISO 4259-5:2023 石油及有关产品 测量方法和结果的精确度 第5部分：声称测量同一属性的两种不同测量方法之间一致性的统计评估
标准编号：ISO 4259-5:2023
中文名称：石油及有关产品 测量方法和结果的精确度 第5部分：声称测量同一属性的两种不同测量方法之间一致性的统计评估
英文名称：Petroleum and related products — Precision of measurement methods and results — Part 5: Statistical assessment of agreement between two different measurement methods that claim to measure the same pro
发布日期：2023-12
标准范围
本文件规定了用于评估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方法，以及用于确定简单的线性偏差校正是否可以进一步提高预期一致性的统计方法。本文件适用于测量多样品多实验室研究（MSMLS）产生的石油或石油产品定量特性的分析方法。这些类型的研究包括但不限于符合ISO 4259-1或同等标准要求的实验室间研究（ILS），以及符合ISO 4259-3或同等标准要求的能力验证计划（PTP）。本文件中规定的方法确定了两个结果之间差异的极限值，其中每个结果由不同操作员使用不同设备和两种方法X和Y分别在相同材料上获得。其中一种方法（X或Y）已经根据本实践进行了适当的偏差校正，以与另一种方法一致。该限度被指定为方法间重现性。预计超过该值的概率为5？由于随机变异，在两种试验方法的正确和正常操作下的%。笔记？5.1和5.2中给出了应用该方法的进一步条件。
This document specifies statistical methodology for assessing the expected agreement between two test methods that purport to measure the same property of a material, and for deciding if a simple linear bias correction can further improve the expected agreement.
This document is applicable for analytical methods which measure quantitative properties of petroleum or petroleum products resulting from a multi-sample-multi-lab study (MSMLS). These types of studies include but are not limited to interlaboratory studies (ILS) meeting the requirements of ISO 4259-1 or equivalent, and proficiency testing programmes (PTP) meeting the requirements of ISO 4259-3 or equivalent.
The methodology specified in this document establishes the limiting value for the difference between two results where each result is obtained by a different operator using different apparatus and two methods X and Y, respectively, on identical material. One of the methods (X or Y) has been appropriately bias-corrected to agree with the other in accordance with this practice. This limit is designated as the between-methods reproducibility. This value is expected to be exceeded with a probability of 5 % under the correct and normal operation of both test methods due to random variation.
NOTE Further conditions for application of this methodology are given in 5.1 and 5.2.
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