1.1 本规程包括在一般实验室条件下评估和比较喷涂涂层的转移效率。转移效率是指喷涂过程中沉积的油漆固体与使用的油漆固体总量的比率，以百分比表示。该实践可用于研究改变操作变量和涂料配方对转移效率的影响。需要控制的关键变量列于 8.13 . 注1: 重要的是，所有工艺或配方参数（有意更改的参数除外）在不同试验中保持一致。如果不这样做，研究结果将受到质疑。 1.2 本规程的再现性在很大程度上取决于第节所列参数的控制程度 8. 对实践的影响。 1.3 限制- 本实验室实践仅表明了在实验室试验条件下，操作变量和液体涂料配方对转移效率的影响方向: 影响的程度只能通过具体的工厂经验来确定。事实上，影响传输效率的关键参数的性质表明，不可能推断实验室结果。 注2: 概述的实验室实践涉及一般实验室喷涂设备和程序，并源于试验方法 D5009 . 本规程和试验方法 D5009 这两个数据均来自美国环境保护局（U.S.Environmental Protection Agency）进行的转移效率测量研究和报告。对于能够使用输送机和质量流量测量设备的实验室，测试方法中定义了一种合适的、可能更具再现性的测试方法 D5009 . 1.4 以国际单位制表示的数值应视为标准。括号中给出的值仅供参考。 1.5 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。 有关具体的危险说明，请参阅第节 7. , 8.10.10.5 和 8.13.1 . 1.6 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 受中列出的限制 1.3 该实践可作为优化喷涂设备和涂料配方的研究工具，以及研究改变操作变量、喷涂设备、涂料类型等对转移效率的相对影响。

1.1 This practice covers the evaluation and comparison of the transfer efficiency of spray-applied coatings under general laboratory conditions. Transfer efficiency is the ratio of paint solids deposited to the total paint solids used during the application process, expressed as a percent. This practice can be used to study the effect on transfer efficiency of changing operating variables and paint formulations. Key variables that need to be controlled are listed in 8.13 . Note 1: It is important that all process or formulation parameters, except that which is intentionally being changed, be kept consistent from test to test. If not done, the results of the study are to be questioned. 1.2 The reproducibility of this practice is highly dependent on the degree of control of the parameters listed in Section 8 of the practice. 1.3 Limitations— This laboratory practice indicates only the direction of the effect of operating variables and liquid paint formulations on transfer efficiency under conditions of the laboratory test: the magnitude of the effect can be determined only with specific plant experience. In fact, the nature of the critical parameters that affect transfer efficiency makes clear that it is not possible to extrapolate laboratory results. Note 2: The laboratory practice outlined involves general laboratory spray equipment and procedures and is derived from Test Method D5009 . This practice and Test Method D5009 are both derived from a study and report of transfer efficiency measurements conducted for the U.S. Environmental Protection Agency. For laboratories that have access to a conveyor and mass flow measurement equipment, a suitable, potentially more reproducible, tested method is defined in Test Method D5009 . 1.4 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only. 1.5 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. For specific hazard statements see Section 7 , 8.10.10.5 , and 8.13.1 . 1.6 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 Subject to the limitations listed in 1.3 , this practice can be used as a research tool to optimize spray equipment and paint formulations, as well as to study the relative effect on transfer efficiency of changing operating variables, spray application equipment, type of coatings, etc.