1.1 本试验方法包括通过空气射流磨损测定FCC催化剂的相对磨损特性。其他细粉催化剂可以通过该试验方法进行分析，但该试验方法的精度仅适用于FCC催化剂。它适用于大小在10到180之间的球形或不规则形状的颗粒 μm，骨骼密度在2.4和3.0之间 克/厘米 3. （2400和3000 千克/米 3. )（请参见 IEEE/ASTM SI-10标准 )不溶于水。小于20μm的颗粒被视为细颗粒。（见术语 D3766号 .) 1.2 单位- 以国际单位表示的数值视为标准值。本标准不包括其他计量单位。 1.3 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。 1.4 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 本试验方法旨在提供有关粉末催化剂在流化环境中使用期间抵抗粒径减小的能力的信息。 5.2 本试验方法适用于规范验收、制造控制和研发目的。

1.1 This test method covers the determination of the relative attrition characteristics of FCC catalysts by means of air jet attrition. Other fine powder catalysts can be analyzed by this test method, but the precision of this test method has been determined only for FCC catalysts. It is applicable to spherically or irregularly shaped particles which range in size between 10 and 180 μm, have skeletal densities between 2.4 and 3.0 g/cm 3 (2400 and 3000 kg/m 3 ) (see IEEE/ASTM SI-10 ) and are insoluble in water. Particles less than 20 μm are considered fines. (See Terminology D3766 .) 1.2 Units— The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.3 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. 1.4 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 This test method is intended to provide information concerning the ability of a powdered catalyst to resist particle size reduction during use in a fluidized environment. 5.2 This test method is suitable for specification acceptance, manufacturing control, and research and development purposes.