RE: Litre/dm3

["Caracappa, Peter F (CRD)" <caracappa@crd.ge.com>]

	----------
	From:  Falo Gerald A CHPPM [SMTP:Gerald.Falo@APG.AMEDD.ARMY.MIL]
	Sent:  Tuesday, August 17, 1999 8:35 AM
	To:  Multiple recipients of list
	Subject:  RE: Litre/dm3

	According to Robert A. Nelson in "Guide for Metric Practice," (Physics Today
	Buyer's Guide August 1999), the liter (L) is a unit accepted for use with
	the SI and is defined as follows:

	1L = 1 dm^3 = 0.001 m^3.

Although they are ostensibly equal, I think that the liter is techncially defined as the volume of
one kilogram of water at 4 degrees C, whereas the dm^3 is defined in terms of length cubed, which is
derived from the speed of light in a vacuum.  I have not heard of one or the other being changed to
have them both defined the same way.


	Note, that the liter itself is not an SI unit.

	Jerry Falo
	jer3ry@aol.com
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g GE Corporate Research & Development
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Peter F. Caracappa
Environment, Health, and Safety
Tele: 518-387-4221  Dial Comm:  8*833-4221
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email: caracappa@crd.ge.com


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