GB/T 2424.13 Environmental testing for electric and electronic products--Part 2: Test methods Guidance on change of temperature tests*, 2002-06-13 Update
GB/T 5170.1 Inspection methods for environmental testing equipments for electric and electronic products—Part 1:General*, 2016-12-13 Update
HY 21.4-1992 history
1989HY 21.4-1992 The basic method of environmental test for oceanographic instruments - Guideline for temperature variation test