1.1本试验方法涵盖了可用于比较固体材料抗空蚀性的试验。从喷嘴发出的淹没空化射流冲击放置在其路径上的试样，使其上的空腔塌陷，从而造成侵蚀。试验在规定的条件下，在规定的液体（通常是水）中进行。该试验方法也可用于比较各种液体的空化侵蚀能力。 1.2本试验方法规定了喷嘴和喷嘴座的形状和尺寸、试样尺寸及其安装方法以及最小试验室尺寸。描述了选择防区外距离和几种标准试验条件之一的程序。在适当的情况下，如果有适当的记录，允许偏离其中一些条件。 提供了关于设置合适仪器、测试和报告程序以及应采取的预防措施的指南。规定了标准参考物质；这些必须用于验证设施的运行，并定义其他材料的标准化抗侵蚀性。 1.3包括两种类型的试验，一种使用可被浪费的试验液体，例如自来水，另一种使用必须再循环的液体，例如试剂水或各种油。每种类型需要稍微不同的测试电路。 1.4本试验方法提供了试验方法G 32的替代方法。在该方法中，通过以指定振幅高频（20 kHz）振动浸没试样来诱导空化。在本方法中，空化是在流动系统中产生的，因此射流速度和下游压力（导致气泡崩溃）可以独立变化。 1.5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。 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和健康实践，并确定监管限制的适用性。

1.1 This test method covers a test that can be used to compare the cavitation erosion resistance of solid materials. A submerged cavitating jet, issuing from a nozzle, impinges on a test specimen placed in its path so that cavities collapse on it, thereby causing erosion. The test is carried out under specified conditions in a specified liquid, usually water. This test method can also be used to compare the cavitation erosion capability of various liquids. 1.2 This test method specifies the nozzle and nozzle holder shape and size, the specimen size and its method of mounting, and the minimum test chamber size. Procedures are described for selecting the standoff distance and one of several standard test conditions. Deviation from some of these conditions is permitted where appropriate and if properly documented. Guidance is given on setting up a suitable apparatus, test and reporting procedures, and the precautions to be taken. Standard reference materials are specified; these must be used to verify the operation of the facility and to define the normalized erosion resistance of other materials. 1.3 Two types of tests are encompassed, one using test liquids which can be run to waste, for example, tap water, and the other using liquids which must be recirculated, for example, reagent water or various oils. Slightly different test circuits are required for each type. 1.4 This test method provides an alternative to Test Method G 32. In that method, cavitation is induced by vibrating a submerged specimen at high frequency (20 kHz) with a specified amplitude. In the present method, cavitation is generated in a flowing system so that both the jet velocity and the downstream pressure (which causes the bubble collapse) can be varied independently. 1.5 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only. 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 and health practices and determine the applicability of regulatory limitations prior to use.