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August 2011

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Subject:
Prepreg storage conditions
From:
colin mcvean <[log in to unmask]>
Reply To:
colin mcvean <[log in to unmask]>
Date:
Mon, 22 Aug 2011 06:51:38 +0100
Content-Type:
text/plain
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text/plain (27 lines) 
Dear all,
 
"Simple" question regarding prepreg storage conditions.....
 
IPC4101 states that prepregs has shelf life of 6 months while in condition 1 at <5 Degrees C (41 F) and 3 months while in condition 2 at <23 Degrees C (73F) and <50% Rh.
 
Condition 1 does not clearly state a humidity control.
Does Humidity still have to be less than 50% while under condition 1? or is this a given considering Temperature vs. Humidity relationship
 
rgds
Colin

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