의미와 용도
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; 하지만, 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 “Engine Coolant Determination of Aluminum Pump Cavity Corrosion and Erosion Corrosion”

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

메모 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. 그러므로, this test method cannot be recommended as an important test for determining cavitation effects of two-phase coolants.

1.2 SI 단위로 표현된 값은 표준값으로 간주됩니다.. SI 단위 뒤 괄호 안의 값은 참고용일 뿐 표준값은 아닙니다..

1.3 이 표준은 모든 안전 문제를 해결하기 위한 것이 아닙니다., 만약에 어떠한, 그 사용과 관련된. 적절한 안전을 확립하는 것은 이 표준 사용자의 책임입니다., 건강 및 환경 관행을 확인하고 사용 전 규제 제한의 적용 여부를 결정합니다.. 보다 5.2 for specific warning statements.

1.4 이 국제 표준은 국제 표준 개발 원칙에 관한 결정에서 확립된 국제적으로 인정된 표준화 원칙을 기반으로 합니다., WTO 무역기술장벽위원회가 발행한 지침 및 권고사항.