IEC 60068-2-66 Continuous Humidity and Heat Testing: Sanwood Technology Highly Accelerated Stress Test Chamber

Ensuring the quality and reliability of modern electronic products. Assisting engineers in swiftly identifying design flaws and screening potential faults during the R&D phase, thereby guaranteeing the long-term stability of final products in the marketplace. With extensive expertise in environmental testing equipment, Sanwood Technology's Highly Accelerated Stress Test Chamber strictly adheres to the IEC 60068-2-66 standard (Environmental Testing – Part 2: Test Method Cx: Continuous Damp Heat Test, i.e. unsaturated pressurised steam) issued by the International Electrotechnical Commission. It is employed for accelerated ageing life testing and reliability assessment of products including IC semiconductors, microelectronic packaging, PCB boards, photovoltaic modules, magnetic materials, and polymeric materials.

I. Standard Interpretation

Test method Cx, as defined by IEC 60068-2-66, fundamentally simulates a sustained high-temperature, high-humidity environment of unsaturated pressurised steam exceeding normal operating conditions. Compared to conventional constant humidity or temperature-humidity cycling tests, this method creates an environment exceeding atmospheric pressure within a pressurised chamber. This allows water vapour to remain unsaturated at elevated temperatures, significantly accelerating moisture penetration into the test specimen.

Sanwood Technology's Highly Accelerated Stress Test Chamber serves as the essential tool for achieving this high-standard testing. It translates the stringent requirements of IEC 60068-2-66 into a precise, controllable, and reproducible physical environment. This empowers R&D and quality teams to identify defects, optimise designs, and enhance quality before product finalisation and mass production, thereby significantly shortening development cycles and reducing market failure risks.

II. Professional Specifications of Sanwood Technology's Highly Accelerated Stress Test Chamber

To meet IEC 60068-2-66's exacting demands for precise control and long-term stability of temperature, humidity, and pressure, Sanwood Technology's Highly Accelerated Stress Test Chamber features the following technical parameters:

Temperature range: +105.0°C to +133.0°C

Pressure control range: 0.5 to 2.3 kg/cm² (0.05 to 0.23 MPa)

Humidity range: 65% to 100% R.H.

HAST test conditions can be set to 130°C, 85% R.H., 230 kPa atmospheric pressure for a 96-hour test duration.

III. Technical Features

The equipment employs advanced multi-stage PID intelligent control algorithms, coupled with high-precision sensors, to achieve precise and stable temperature, humidity, and pressure regulation.

The test chamber features a premium stainless steel inner chamber and specialised seals, offering high-temperature resistance and anti-ageing properties to ensure long-term stable operation.

Test data is comprehensively recorded and conveniently exportable, guaranteeing full process traceability.

It incorporates outstanding safety protection and user-centric design.

Conclusion

In the increasingly competitive global manufacturing landscape, reliability forms the bedrock of brand reputation and is paramount to earning customer trust. Sanwood Technology's HAST High-Pressure Accelerated Stress Test Chamber, adhering to the IEC 60068-2-66 international standard, establishes a robust quality defence for enterprises through its exceptional professional performance, dependable safety assurances, and intelligent operational experience. Beyond the Highly Accelerated Stress Test Chamber, Sanwood Technology also supplies ESS Test Chamber, Thermal Shock Test Chambers, and High and Low TemperatureChambers.

For bespoke testing solutions, contact Sanwood Technology. We provide tailored professional services to meet your specific requirements.