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A Beginner’s Guide to Accelerated Stress Testing (AST)

By Admin / Published on Friday, 09 Jun 2017 01:00 AM / Comments Off on A Beginner’s Guide to Accelerated Stress Testing (AST) / 734 views

Two Engineers Doing a Product TestingIf your business requires product testing, Accelerated Stress Testing (AST) is the way to go. AST has catered to a wide range of industries. Some of the most loyal patrons of this method include those working on mechanical, electronic, and electromechanical systems. The basic goal of AST is to ensure that products achieve utmost reliability before they become available to end users.

If you are buying a used environmental test chamber from a specific supplier, one question you need to ask is whether it is AST-proven and tested. AST is comprised of two sub-methods: Highly Accelerated Life Testing (HALT) and (Highly Accelerated Stress Screening (HASS).


As you might have noticed, accelerated is the operative word in both the HALT and HASS methods. This is in response to the logical demand from product manufacturers and developers for quick testing without the risk of compromised reliability. With these methods, you can be sure that your product goes through a stringent screening process without necessarily being stalled for too long in the drawing board.

HALT and HASS as components of Accelerated Stress Testing specifically address two stages in product completion. HALT is conducted during the design stage, where its main objective is to search for faulty aspects in product design. After the design is approved, HASS comes in as the clincher, conducting scrutiny in production.

Bridging the Gap between Theory and Application

Renowned statistician William Edwards Deming—widely credited for Japan’s post-World War Two quality revolution—once said: “In Theory everything is possible; however, I live in Practice and the road to Theory has been washed out.”

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This sentiment may sound too cynical, and it is this disconnect between theory and application that HALT & HASS endeavors to bridge.

If product quality and fast ROI are of utmost importance to your business, it’s time you accelerate product testing.