Download or read book GB T 2423 59 2008 Translated English of Chinese Standard GB T 2423 59 2008 GBT2423 59 2008 written by https://www.chinesestandard.net and published by https://www.chinesestandard.net. This book was released on 2023-04-03 with total page 21 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Part of GB/T 2423 specifies the basic requirements, severities, test procedures and other technical details for the combined temperature (cold and heat)/low air pressure/vibration (random) test. This Part applies to the determination of the adaptability of products under the combined effects of temperature (cold and heat), low air pressure and vibration (random). This Part applies as a reference to combined tests with temperature changes.

Download or read book GB T 2423 23 2013 Translated English of Chinese Standard GBT2423 23 2013 written by https://www.chinesestandard.net and published by https://www.chinesestandard.net. This book was released on 2022-01-06 with total page 62 pages. Available in PDF, EPUB and Kindle. Book excerpt: This part of GB/T 2423 specifies various sealing performance test methods. Test Qa and Qc are rough inspections, to observe the bubbles emerging from the leak. Test Qd is to observe the leakage of liquid, under heating conditions. Test Qy is to make the gas pass through the leak and enter the test box, under reduced pressure, then measure the performance change of the test box. Test Qk, Qm is to use tracer gas to detect small leaks. Test Qf, Ql is to make liquid enter it through the leak, under pressurized conditions, then measure its performance changes. This Part is suitable for testing the sealing performance of various electrical and electronic products. It is also suitable for testing the sealing performance of other sealing parts.