標準號：BS EN 60068-2-18-2001
中文標準名稱：環(huán)境試驗.試驗方法.試驗R和導則.水
英文標準名稱：Environmental testing. Test methods. Tests R and guidance. Water
標準類型：K04
發(fā)布日期：2001/6/15 12:00:00
實施日期：2001/6/15 12:00:00
中國標準分類號：K04
國際標準分類號：19.040
適用范圍：This part of IEC 60068 provides methods of test applicable to products which, during transportation, storage or in service, may be subjected to falling drops, impacting water or immersion. The primary purpose of water tests is to verify the ability of enclosures, covers and seals to maintain components and equipment in good working order after and, when necessary, under a standardized dropfield or immersion in water. These tests are not corrosion tests and should not be considered and used as such. The effects of a large temperature difference between the water and the specimen, such as increased water ingress resulting from pressure changes, as well as thermal shock, are not simulated. Established water tests in other standards are not intended to simulate natural rainfall and their quoted intensities are too high to be adopted for that purpose. Therefore, in addition to the high-intensity severities, Test R includes an artificial rain test based upon natural conditions but not taking into account high wind speeds generally associated with natural rain. Guidance is given on the applicability of the tests and the severities to be selected.