YD 1539-2006 The reliability technical requirements and test methods of mobile communication handsets mainly explain the technical requirements and test methods for the adaptability of mobile communication handsets to environmental and mechanical stresses. This standard is applicable to mobile communication handsets, and other mobile communication terminal equipments other than mobile communication handsets may also be referred to. Today we mainly explain the main technical requirements for constant damp heat testing of mobile phones.
After the mobile communication handset passes the (40±2) °C and the relative humidity of 93 (+2, -3)% in the shutdown state, the radio frequency performance should meet the requirements of relevant standards. Constant damp heat test method:
All tests shall be carried out under the following normal conditions, unless otherwise specified.
(a) Ambient temperature: 15 ° C ~ 35 ° C;
(b) Relative humidity: 45% to 75%;
(c) Atmospheric pressure: 86~106 kPa;
(d) The noise level of the test period shall be no more than 55 dB(A).
Second, the test method is carried out in accordance with the relevant provisions of GB/T 2423.3.
3. Condition test: The test sample is placed in a constant temperature and humidity test chamber according to the normal state, and the test sample is loaded with the matching battery, and is not turned on. Start the constant temperature and humidity test chamber power supply to raise the temperature inside the box to 40 ° C. Then, humidify and stir the air in the damp heat test chamber. When the temperature reaches the required level, the relative humidity is 90%~95%, and it is kept for 48 hours.
4. After the condition test is completed, the final test of the radio frequency performance is performed.
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