Altitude Test

1 Test Purpose

   This test is intend to verify the product or component storage, transportation and operating ability under altitude (High altitude or highland) environmental, the High temperature and Altitude or Low temperature and Altitude combined are very important for testing.  

2 Test Reference Standard

   IEC 68-2-40 Test Method Z/AM: Low Temperature & Altitude Test

   IEC 68-2-41 Test Method Z/BM: Hot Temperature & Altitude Test

                               Fig. 1: Reference Test Profile 

3 Test Key Effect

   (1) Airplane transportation pressure influence;

   (2) Gas tightness expansion or crack;

   (3) Cooling reduction;

   (4) Discharge effect;

   (5) Capacitance and Bubble packing material influence;

   (6) Bad burning for mechanical engine.