Re: Fortran character sets
From: Gene Nygaard (gnygaard_at_nccray.com)
Date: 04/07/04
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Date: 7 Apr 2004 07:15:23 -0700
harper@mcs.vuw.ac.nz (John Harper) wrote in message news:<1081305737.485025@bats.mcs.vuw.ac.nz>...
> In article <c4unu7$cgc$2@online.de>,
> Phillip Helbig---remove CLOTHES to reply <helbig@astro.multiCLOTHESvax.de> wrote:
> >
> >Second, the # key might be called the "pound sign" in the sense of
> >weight, not currency.
>
> Really? Apart from full stops present or absent, I have never seen any
> abbreviation except lb for pounds mass, and lb wt (or lbwt) for pounds
> weight in contexts where the distinction matters. There are both
> British and American-published books on my shelves that confirm this.
>
> John Harper, School of Mathematical and Computing Sciences,
> Victoria University, PO Box 600, Wellington, New Zealand
You ought to take another look.
The modern name for this unit is the pound force with the symbol "lbf"
(earlier use of an italic subscript f or F after "lb" has mostly
fallen by the wayside). American Society for Testing and Materials,
Standard for Metric
Practice, E 380-79, ASTM 1979.
3.4.1.4 The use of the same name for units of force
and mass causes confusion. When the non-SI units are
used, a distinction should be made between force and
mass, for example, lbf to denote force in gravimetric
engineering units and lb for mass.
This is the rule used by national standards laboratories such as NIST
in the United States and NPL in the U.K. I didn't find it (nor any
other symbol for pounds force) on the web pages of Measurement
Standards Laboratory of New Zealand, but here are some New Zealand
pages using lbf:
http://www.terramacs.co.nz/Products_HDDM_MidiMac.htm
http://sreka.co.nz/products/switchboard/indoorbusbar.htm
http://www.grocersreview.co.nz/archives/dec03_6.htm
http://search.telarc.co.nz/scripts/IANZWebSearch/IANZWebSearch.exe/displaycoy?coy_no=22
http://www.ohope.co.nz/convert.html
Gene Nygaard
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