Qualmark is the World Leader in HALT/HASS Technology Qualmark is the largest global manufacturer of accelerated reliability testing systems for performing HALT (Highly Accelerated Life Tests) and HASS (Highly Accelerated Stress Screens). Qualmark supports more HALT/HASS systems, has conducted more HALT/HASS tests, and offers more HALT/HASS expertise than any other company in the world.
