High temperature test for environmental test methods of communication electroacoustic devices

The high temperature test method for the environmental test method of the communication electroacoustic device is as follows:

1. Place the unpackaged test sample in a high temperature test chamber with room temperature. The chamber temperature was raised to an average temperature of less than 10 ° C / min to a temperature of 65 ° C or 55 ° C, and was maintained for 48 h after the test sample reached temperature stability.

2. Take out the test sample in the high temperature test chamber, and complete the test of the items specified in the detailed product specification within 5 minutes after the removal and after 2 hours of recovery, and the results should meet the requirements of the detailed product specifications.

The above high temperature test method is specified in the SJ 20128-1992 [Communication Electroacoustic Device Environmental Test Method] standard.

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