意义及用途
4.1 This test method can be used to distinguish between coolants that cause cavitation and erosive corrosion of aluminum automotive pumps and those that do not. Specific rating numbers determined based on this test are not intended to correspond to specific mileage in vehicle testing; 然而, limited correlation was observed between bench and field service tests using single-phase coolant. If the actual impact of coolant on cavitation and erosive corrosion is to be assessed, field testing under harsh operating conditions should be used as the final test. With proper control of the test variables, it is also possible to determine the influence of pump design, structural materials, and pump operating conditions on cavitation and erosion corrosion damage.

ASTM D2809-2017 “发动机冷却液铝泵腔腐蚀和冲刷腐蚀的测定”

半径
1.1 This test method covers the evaluation of cavitation and erosion corrosion characteristics of aluminum automotive pumps with coolant.

笔记 1: During the development of this test method, it was found that the results obtained when testing two-phase coolants were not correlated with the results of field tests. 所以, this test method cannot be recommended as an important test for determining cavitation effects of two-phase coolants.

1.2 以 SI 单位表示的值应视为标准值. SI单位后括号内给出的数值仅供参考，不被视为标准值.

1.3 本标准并非旨在解决所有安全问题, 如果有的话, 与其使用相关. 本标准的使用者有责任建立适当的安全机制, 健康和环境实践，并在使用前确定监管限制的适用性. 看 5.2 for specific warning statements.

1.4 本国际标准基于《关于制定国际标准的原则的决定》中确立的国际公认的标准化原则, 世贸组织贸易技术壁垒委员会发布的指南和建议.