1.1 本规程为工艺流分析仪的性能测试提供了实用指南，该分析仪专门用于测量液体芳烃材料的化学或物理特性，以生产或认证这些材料。该规程也可适用于其他烃流分析仪。 1.2 仅包括控制样品引入的外部方法（用标准完全替代工艺流）。内部方法超出了本实践的范围。 1.3 供应商提供了重置分析仪关键操作参数以匹配预定义限值的方法，本规程不包括这些方法。 1.4 实践中涵盖了分析仪验证程序 D3764 和 D6122 ，而不是在本实践中。 1.5 概述了自动采样过程流分析仪数据的统计解释程序。 1.6 实施本规程要求根据APIRP安装分析仪- 550 ( 1. ) , 2. 并同意分析仪供应商的建议。此外，假设分析仪设计用于监测相关的特定材料参数，并且在初始或定期验证时，分析仪在制造商规定的条件下运行，并与主要试验方法一致。 1.7 本规程中使用的测量单位应与适用于分析仪验证所用试验主要方法的测量单位相同。 1.8 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制定适当的安全、健康和环境实践，并在使用前确定监管限制的适用性。 1.9 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====== 5.1 在线分析仪的性能测试对于其在可预测的精度和准确度水平内的正确性能至关重要。这种做法可能会影响芳烃材料的生产效率和认证。

1.1 This practice serves as a practical guide for the performance testing of process stream analyzers specifically for measuring chemical or physical characteristics of liquid aromatic hydrocarbon materials for production or certification of these materials. The practice may be applicable to other hydrocarbon stream analyzers as well. 1.2 Only external methods (complete substitution of the process stream with a standard) of control sample introduction are included. Internal methods are beyond the scope of this practice. 1.3 Methods for resetting key operational parameters of analyzers to match predefined limits are provided by vendors and are not included in this practice. 1.4 Analyzer validation procedures are covered in Practices D3764 and D6122 , not in this practice. 1.5 Procedures for statistically interpreting data from automatic sampling process stream analyzers are outlined. 1.6 The implementation of this practice requires that the analyzer be installed according to APIRP-550 ( 1 ) , 2 and be in agreement with the analyzer supplier’s recommendations. Also, it assumes that the analyzer is designed to monitor the specific material parameter of interest, and that at the time of initial or periodic validation, the analyzer was operating at the conditions specified by the manufacturer and consistently with the primary test method. 1.7 The units of measure used in this practice shall be the same as those applicable to the test primary method used for analyzer validation. 1.8 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. 1.9 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 ====== 5.1 Performance testing of on-line analyzers is critical to their proper performance within predictable levels of precision and accuracy. This practice can affect production efficiency and certification of aromatic hydrocarbon materials.