YD/T 1539-2006 The reliability technical requirements and test methods of mobile communication handsets are mentioned. After the mobile communication handset is subjected to the following harsh level of alternating salt spray test in the off state, the function, appearance and assembly should comply with relevant standards. Claim.
Severity rating: three spray cycles, each 2h, each with a 22h wet heat storage cycle after each spray cycle. The spraying conditions were a temperature (15-35) ° C, a concentration of (5.0 ± 1)% sodium chloride solution; a storage condition of (40 ± 2) ° C, and a relative humidity of 90% to 95%. The salt spray test method is as follows:
First, the test method is carried out in accordance with the relevant provisions of GB/T 2423.18.
Second, the condition test: the test sample is not packaged, the installed battery is placed in the alternating salt spray test chamber, sprayed at (15 ~ 35) ° C for 2h, the spray pH value is 6.5 ~ 7.2 (temperature is 20 Between °C ± 2 ° C), the concentration is (5.0 ± 1)% sodium chloride salt solution. After the spraying is completed, the wet heat test is carried out for 22 hours, and the storage condition is temperature (40±2) ° C, and the relative humidity is 90% to 95%.
Sprayed and stored as described above to form a cycle, the severity level requires three cycles of testing.
The test method and salt spray settling rate are as specified in GB 2423.18 and GB 2424.10.
3. After the condition test is completed, the test sample is tested for function, appearance and assembly.
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