Re: [OM] metric --> English conversions

Subject: Re: [OM] metric --> English conversions
From: "Tom Trottier" <Tom@xxxxxxxxxxxxx>
Date: Fri, 1 Feb 2002 12:50:39 -0500
On Friday, February 01, 2002 at 9:45, William Sommerwerck 
wrote re "[OM] metric --> English conversions" saying:

> ** If the weight were given as 32.0 ounces, then it _might_ be reasonable to
> have one decimal place in the conversion.

Just to be even pickier, it's not the number of decimals, it's the number 
of significant digits.  So 32 oz. = .91 Kg (2 significant digits) or 910g 
or 910,000mg or .00091t

But precision in packaged goods is sometimes better than indicated. 
1 lb of butter does not equal .5 Kg, but probably 454g +/- 4g
This is because it is not a measurement, but a standard.
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