標準號：BS EN 14430-2004
中文標準名稱：釉和搪瓷.高壓試驗
英文標準名稱：Vitreous and porcelain enamels - High voltage test
標準類型：Y26
發布日期：2004/12/6 12:00:00
實施日期：2004/12/6 12:00:00
中國標準分類號：Y26
國際標準分類號：25.220.50
適用范圍：This document describes 2 test methods of high voltage testing: — Test A is used to detect and locate defects in vitreous and porcelain enamels; — Test B is used to detect and locate defects and weak spots in vitreous and porcelain enamels. The tests are performed using DC, pulsed DC, or AC high voltage. The tests are applicable to dry surfaces of enamel coatings. In the case of moist surfaces, care should be taken to ensure that the locating of any defects is correctly performed. Since test voltages depend on the coating thickness, the test method, especially with test A, may not be suitable for test specimens for which the coating thickness varies to a large extent. NOTE This document extends the range of application of the test given in ISO 2746, which is restricted to coating thicknesses of minimum 660 μm.