Antonio,

"It depends"! (This statement is certainly getting worn out!)
The methods should be:
1. tailored to the worst case conditions of the projected end use environments and;
2. agreed upon by the vendor and the customer (in writing).

Beyond that it is a matter of budgets and how "lucky" do you feel.

Seriously folks, there is no set, carved in stone guidelines. Testing is very touchy. Changes in the
order of
 accelerated loading performed (temp, vibration, humidity, contamination resistance, etc.) , the style,
and the amount
will result in wildly divergent numbers. There is no easy answer.

David A. Douthit
Manager
LoCan LLC





Antonio Souza wrote:

> Please
>
> Does anybody know any Guidelines for Accelerated Reliability Testing of PTH
> ?
>
> thanks
>
> Antonio
> INPE-Brasil
>
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