Date：2021-07-30 15:09:46

CNAs - list of approved specifications of certification bodiesView >>

Date：2021-07-26 16:54:00

Packaging - Basic tests for transport packages: low pressure test methodView >>

Date：2021-07-26 16:46:36

Basic environmental test procedures for electrical and electronic products test DB: alternating damp heat test methodView >>

Date：2021-07-26 16:41:49

Basic environmental test procedures for electrical and electronic products test CA: constant damp heat test methodView >>

Date：2021-07-26 16:35:00

Basic environmental test procedures for electrical and electronic products test B: high temperature test methodView >>

Date：2021-07-26 16:30:00

Basic environmental test procedures for electrical and electronic products test a: low temperature test methodView >>

Date：2021-07-26 11:35:00

Before leaving the factory, the chip needs environmental test to simulate the adaptability of the chip to operation and storage in the climate environment, so as to ensure that it can work normally in extreme environments. High and low temperature test is a method used to determine the adaptability of products to storage, transportation and use under high temperature climate and environmental conditions. The severity of the test depends on the temperature of the high temperature and the duration of exposure.View >>

Date：2021-07-23 16:00:00

Basic principles of reliability design detailed version with PDF information for free downloadView >>

Date：2021-03-09 13:09:00

INDUSTRY-newsView >>

Date：2021-02-05 16:59:00

Cnas-ai01-12: Attached Table 7: management system Checklist (cnas-ci01-a005:2021) description of the application of accreditation criteria for inspection institutions in the field of construction engineering inspectionView >>