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RE: Shade cloth percentage

      The measurement of plastic films in mils in the US refers to 
thousandths of an inch.  A 7 mil film is .007 inch thick.  The same thing 
is true in the US with other measurements in mils.  The spec on the 
distributor points in your car (if it has a distributor) or the spark plug 
gap is measured in thousandths and expressed as mils.  Its confusing, since 
in other parts of the world, Michael is right mil would refer to 

Ron McHatton

-----Original Message-----
From:	Cooper, Susan L. [SMTP:SLCooper@scj.com]
Sent:	Wednesday, May 22, 2002 11:35 AM
To:	Multiple recipients of list AROID-L
Subject:	RE: Shade cloth percentage

That is what I thought intuitively.  I got my definition from the web (just
goes to show you everything you read isn't correct).  But if mil is
millimeter, wouldn't 7 or 8 mil be really thick plastic??? (Just looking at
my ruler)


A 'mil' would be a millimeter , one thousandth of a meter . A 'thou' is a
thousandth of an inch , a big difference .

Michael Pascall,

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