In a message dated 02/23/2000 3:09:10 AM US Eastern Standard Time,
[log in to unmask] writes:

>
>  This is the main reason why SIR testing is, in many cases, useless to
>  qualify a flux: you qualify it under lab conditions, totally ignoring
>  the fact that its behavious will alter in practice due to it mixing with
>  external contaminants not present on your test vehicles.
>

SIR USELESS?  Gasp!! Burn the Heretic!!!!!!!!!!

SIR can be useful, even as a lab tool, you just have to use the right
combination of materials, processes, environment and data interpretation.  I
would agree that we have a long way to go before our existing methods are a
good and true measure of field performance.

Doug Pauls

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