HALT Testing - PARC Environmental Product Testing Services

Our UKAS Accreditation has been extended to include increased Shock and Vibration testing capabilities, plus Salt Mist testing

Achieving supply chain improvement is critical to the competitiveness of the UK aerospace and defence industry

HALT Testing

Highly Accelerated Life Testing is a screening technique in which relatively low numbers of stress cycles significantly outside the normal shipping, storage and operating envelope are applied to:

• Identify areas within the design which may require modification to increase robustness.
• Precipitate latent defects within components.
• Reduce testing time-scales.

The use of such techniques:

• Improves product ruggedness and hence reliability.
• Reduces development time, and time to market.
• Increases mean time before failure.
• Reduces early life failures in the field.
• Reduces warranty costs and improves customer confidence.

The Screening Systems QRS 410-T is one of the latest generation of HALT chambers capable of applying up to 28 grms of random vibration in 6 axes simultaneously, whilst cycling the temperature between -60°C and +150°C, at rates of change of up to 60°C per minute. Thus the maximum stress screening for components in the minimum time is achieved.

Product Assessment & Reliability Centre Ltd. offers two levels of support for HALT:

• Use of the HALT facility with a basic level of support, covering operation of the chamber.
• As above, with consultancy to assist in tailoring the HALT profile to your specific product and to guide you through the test process.

Putting your product through a HALT process before embarking on a qualification test programme helps to find and resolve weaknesses in the design of a product. This will mean both time and money can be saved during qualification.