除非另有规定，在湿热试验的第一次循环前，试验样品应处于不包装、不通电、

Unless otherwise specified, before the first cycle of the damp heat test, the test sample should be in an unpackaged, unpowered, and ready-to-use state under the "standard drying conditions" specified in IEC Publication 68-1 (temperature 55℃±20C , The relative humidity does not exceed 20%) placed for 24 h. Before the initial test, the test sample should reach temperature stability under standard atmospheric conditions or the conditions specified in relevant specifications.

Unless otherwise specified, before the first cycle of the wet heat test, the test sample should be unpackaged, un powered, ready for use and placed at 24 h under the "standard drying conditions" specified in I E C Publication 68-1 (temperature 55 degrees C 20C, relative humidity not exceeding 20%). Test samples should achieve temperature stability under standard atmospheric conditions or relevant specifications before initial testing.

Unless otherwise specified, before the first cycle of the hygrothermal test, the test sample shall be in the state of no packaging, no electricity and ready for use, and shall be placed under the "standard drying conditions" specified in IEC publication 68-1 (temperature 55 ℃ ± 20c, relative humidity no more than 20%) for 24 hours. Before the initial test, the test sample should reach the temperature stability under the standard atmospheric conditions or the conditions specified in the relevant specifications.