1.1本规程涉及固体试样被液滴或射流的重复离散冲击侵蚀或损坏的试验。考虑的附带损伤形式包括窗材料光学性能的退化，以及涂层的渗透、分离或破坏。试验的目的可能是确定受试材料或涂层的抗侵蚀性或其他损伤性，或调查损伤机制和试验变量的影响。由于这些测试的特殊性，以及在许多情况下希望在某种程度上模拟预期的服务环境，因此，发布方法被认为是不可行的。本规程为设置测试提供了指导，并规定了即使在材料、测试设施和测试条件差异很大的情况下也可以遵循的测试和分析程序以及报告要求。 它还提供了适用于金属和其他结构材料的抗侵蚀性数值的标准尺度。 1.2本标准无意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和健康实践，并确定监管限制的适用性。

1.1 This practice concerns tests in which solid specimens are eroded or otherwise damaged by repeated discrete impacts of liquid drops or jets. Among the collateral forms of damage considered are degradation of optical properties of window materials, and penetration, separation, or destruction of coatings. The objective of the tests may be to determine the resistance to erosion or other damage of the materials or coatings under test, or to investigate the damage mechanisms and the effect of test variables. Because of the specialized nature of these tests and the desire in many cases to simulate to some degree the expected service environment, the promulgation of a method is not deemed practicable. This practice gives guidance in setting up a test, and specifies test and analysis procedures and reporting requirements that can be followed even with quite widely differing materials, test facilities, and test conditions. It also provides a standardized scale of erosion resistance numbers applicable to metals and other structural materials. 1.2 This standard does not purport to address all of the safety problems, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.