HAST Chambers
HAST high pressure steady state damp heat test chamber
  • HAST-55
  • +105℃~+135℃
  • 65~100%RH
  • GB/T2423.40-1997,IEC60068,JESD22
Products introduction
The highly accelerated steady state damp heat&stress test (highly accelerated temperature, humidity, stress test) is described as "Unsaturated high pressure steam constant damp heat test" in GB/T2423.40-1997. It is aimed at non airtight packaging devices. It accelerates the moisture to enter the device through temperature, humidity, pressure, and bias voltage, so as to accelerate the aging of accelerator components and investigate the device's moisture resistance.


Product alias: HAST high pressure accelerated aging test chamber, temperature and humidity bias life test chamber, high accelerated temperature and humidity stress test chamber, unbiased voltage UHAST unsaturated high pressure steam test chamber, steady state damp heat life aging chamber, BHAST.


Technical parameters
Model NO. HAST-35
Test Space Volume 43 L
Interior Size φ 350mm
D 450mm
Exterior Size W 700mm
H 1252mm
D 1105mm
Temp.range +105℃~+135℃(Other temperature ranges can be customized)
Humidity range STD Saturation Test Mode:100%RH
HUM Unsaturated test mode:65~100%RH
Pressure range 0.5 ~ 3.0 Kg/cm2(0.05Mpa~0.3Mpa)
(50~300Kpa Including 1 standard atmospheric pressure; 400Kpa is a special optional model)
Gauge pressure:+0.2 ~ 200Kpa
Temp. Fluctuation ±0.5℃
Temp.Uniformity ≤3.0℃
Humidity Deviation ≤±3.0℃
Humidity Fluctuation ±3.0%RH
Humidity Deviation ±5.0%RH
Pressure Deviation ≤±2 kPa
Heating up Rate +25℃~+135℃, The whole process takes about 45 minutes on average (no load, no heat)
Pressurization Time Atmospheric pressure to 200Kpa 40min
Safety protection device 1. Electronic over-temperature protection 2. Fan overheating and overload protection 3. Heater over-temperature protection 4. Humidification system anti-dry protection, drainage, water supply abnormal protection 5. Power leakage, short circuit, overload protection 6. Cabinet pressure is too high High protection 7. Box door lock protection

Product features

◎The double arc design of the inner liner can prevent condensation and water dripping during the test, so as to prevent the product from being directly impacted by superheated steam during the test.


◎The product meets JESD22-A100 to A118 bias (BHAST) or unbiased (UHAST) accelerated moisture resistance test and saturated high-pressure steam (cooking) test.


◎The product is compatible with high accelerated temperature and humidity stress HAST aging test and high-pressure cooking PCT moisture resistance test.