Dry heat / Cold / Rapid Change of Temperature testing

Climatic testing

Climatic tests consist in reproducing terrestrial climatic conditions or increasing them.

These tests may be functional tests (in this case we verify equipments operating faculties at extreme conditions) or accelerated ageing tests (climatic conditions increase without reaching destruction threshold.)

Dry heat / Cold / Rapid Change of Temperature testing

Temperature range: from -75°C to +300°C
Rate of change : from 3°C/min to 15°C/min

Main failure mechanisms

  • Product deformation, dimensional change
  • Electronic components characteristics changes
  • Life time reduction
  • High pressure in tight area
  • Lubricant property change
  • Devolatilisation material
  • Hardening material
  • Cracks apparition
  • Mechanical bending

Standards

CEI 60068-2-1, CEI 60068-2-2, CEI 60068-2-14, MIL STD 810 method 501 et 502, MIL STD 883 method 1010 et 1015, MIL STD 202 method 108, GAM EG 13 fascicule 1 et 2, RTCA DO 160 section 4 et 5, AECTP method 302 et 303, D25 1324

Thermal shocks testing

Temperature range: from -75°C to +180°C
Time transfer: <10s

Main failure mechanisms

Mobil part looseness
Component break or deformation
Cracks apparition
Insulation trouble apparition
Electronic components characteristics changes
Efficiency reducing of protective chemical agents
Electrical and mechanical trouble due to quick water or ice generation
Excessive static electricity

Standards

CEI 60068-2-14, MIL STD 810 method 503, MIL STD 883 method 1011, MIL STD 202 method 107, GAM EG 13 fascicule 7, RTCA DO 160 section 4, RTCA DO 160 section 5, AECTP method 304, B22 6310

Damp heat testing

Temperature range: from -75°C to+180°C
Humidity range: from 10% to 99%

Main failure mechanisms

Oxidation or corrosion
Cracks apparition
Swelling material because of pumping phenomenon
Mechanical resistance looseness
Electronic components characteristics changes
Composite material delamination
Short circuit apparition
Plasticity or elasticity characteristic change

Standards

CEI 60068-2-30, CEI 60068-2-38, CEI 60068-2-78, ISO 6270-1, MIL STD 810 method 507, MIL STD 883 method1004, MIL STD 202 method 103 et 106, GAM EG 13 fascicule 3, et 8 RTCA DO 160 section 6, AECTP method 306, ISO 6270-1, D47 1309
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