Charles,
As a suggestion you might try a version of the processes from GR-487
Electronic Equipment - a standard written to determine the acceptance of
outdoor equipment.
They have a suite of tests for thermal shock, temperature, and
ultraviolet light.
Basically ASTM D 518 for Rubber compounds and Ozone,
Polymeric materials exposed to sunlight, ASTM G 53 UV and ASTM 638
for tensile strength.
Along with some rapid thermal cycling or thermal shock to expand and
contract the material.
Not sure that one could call them accelerated aging, but they might
give you and idea of how to set-one up by increasing the stressors associated
with them.
I'll be curious to hear the answer.
Gary
-----Original Message-----
From: Charles Blackham [mailto:cblac...@airspan.com]
Sent: Friday, November 22, 2002 3:27 AM
To: emc-p...@majordomo.ieee.org
Subject: Accelerated Life Testing of Plastics
All
I'm familiar with HALT/HASS testing of electronics, but now I'm looking to
accelerate the life of the plastic enclosure we put the equipment in. These
units are installed worldwide, outdoors, so see a variety of conditions in the
field.
We have developed some tests ourselves but I would like to find out what "best
practice" is out there. Could anyone point me in the direction of a
consultant/expert in this field, or possibly at standards that address this
issue in other industries?
Best regards
Charlie Blackham
Senior Approvals Engineer
Airspan Communications Ltd.
