TestEQ designs and builds reliability test systems and environmental test chambers on an engineered-to-order basis. The same chamber platform is configured differently depending on the product being qualified, the stresses it has to survive and the standard the laboratory works to. This page groups those requirements by industry.
Chambers are manufactured under an ISO 9001 quality system, and the company operates a government-recognized Environmental Test Chamber Engineering Technology Research Center, with sales and service offices in Dongguan, Xi’an, Beijing and Shanghai. A published machine-level specification runs across the range: temperature from −75°C to +200°C, temperature fluctuation < ±0.5°C, temperature deviation < ±2.0°C, temperature uniformity ±0.5°C, and chamber volumes from 100 to 12,000 L. See the product range for the individual series, and the frequently asked questions for selection detail.
Aerospace and Defense
Typical test articles: avionics and flight-control electronics, aircraft and UAV structural assemblies, satellite and spacecraft components, connectors, sensors and materials.
Common test types: high and low temperature, temperature shock, temperature–altitude (low pressure), thermal vacuum, and combined temperature–humidity–vibration testing.
Typical standards: MIL-STD-810, MIL-STD-202, MIL-STD-883, GJB150, IEC 60068.
Automotive
Typical test articles: ECUs, sensors, control modules, connectors, lighting systems, power electronics and complete sub-assemblies.
Common test types: temperature and humidity cycling, thermal cycling, thermal shock, temperature–vibration testing, and mixed-gas or salt corrosion for exposed components.
Typical standards: GB/T 28046.4, IEC 60068, MIL-STD-810, ASTM B117, ASTM G85, UL.
Semiconductor
Typical test articles: packaged devices, ICs, board assemblies and solder interconnections.
Common test types: temperature cycling, temperature-humidity-bias (THB) and unbiased HAST, thermal shock and rapid temperature change.
Typical standards: JEDEC JESD22 (including JESD22-A104, JESD22-A101 and JESD22-A118), IEC 60068, IEC 60749, MIL-STD-883.
EV Battery
Typical test articles: lithium-ion cells and packs, battery modules, battery-management electronics and energy-storage systems (ESS).
Common test types: temperature cycling, thermal shock, damp heat, environmental stress screening (ESS) and temperature–vibration testing.
Typical standards: IEC 62660, IEC 60068, GB/T 28046.4, UL.
Electronics and Electrical
Typical test articles: components, PCB assemblies, connectors, power supplies and industrial or consumer electronics.
Common test types: high and low temperature and humidity, thermal shock, temperature cycling, vibration combined testing and corrosion testing.
Typical standards: IEC 60068, JEDEC JESD22, MIL-STD-202, MIL-STD-883, ASTM B117, ASTM G85, UL.
Research Institutes and Laboratories
Typical test articles: materials, prototypes, single devices and system-level samples that do not fit a standard catalogue chamber.
Common test types: custom temperature, humidity, altitude and thermal-vacuum environments, combined stress testing, and configured test profiles for experimental work.
Typical standards: IEC 60068, GB, GJB, MIL-STD-810, ASTM, UL.
Selecting a configuration
The stresses listed above share one requirement: the chamber must hold a defined temperature and pressure condition around a real load, not an empty space. Volume, temperature range, temperature change rate, humidity range and the heat generated by the test article are decided together before a model is chosen. The FAQ covers these selection factors, and TestEQ engineers confirm the specification against the applicable standard before a chamber is configured.