SY/T 5421-1991 Basic environmental test methods for petroleum exploration and development instruments Test E: Constant damp heat test (English Version)
2017SY/T 5102-2016 Basic environmental test methods for petroleum exploration and development instruments
1992SY/T 5421-1991 Basic environmental test methods for petroleum exploration and development instruments Test E: Constant damp heat test
SY/T 5421-1991 Basic environmental test methods for petroleum exploration and development instruments Test E: Constant damp heat test was changed to SY/T 5102-2016 Basic environmental test methods for petroleum exploration and development instruments.