本文件已被宣布为“稳定”，不再接受货币定期审查。用户负责验证参考资料和持续适用性或技术要求。新技术可能存在。本SAE航空航天信息报告（AIR）讨论了ISO测试粉尘（被选为亚利桑那州测试粉尘（AC测试粉尘）的替代污染物）和ISO自动颗粒计数器校准程序ISO 11171（替代校准程序ISO 4402（1991））对航空航天润滑用滤芯实验室性能的影响，液压和燃油系统，以及通过自动颗粒计数器确定的流体清洁度水平。

This document has been declared "Stabilized" and will no longer be subjected to periodic reviews for currency. Users are responsible for verifying references and continued suitability or technical requirements. New technology may exist.This SAE Aerospace Information Report (AIR) discusses the impact of the ISO Test Dusts, chosen as replacement contaminants for the Arizona Test Dusts (AC Test Dusts), and the ISO calibration procedure ISO 11171 for automatic particle counters, which replaces the calibration procedure ISO 4402 (1991), on laboratory performance of filter elements utilized in aerospace lubrication, hydraulic and fuel systems, and fluid cleanliness levels determined with automatic particle counters.