Dear Stan,
In the Australian water supply industry, kilolitres, megalitres, and
gigalitres are commonly used.
Cheers,
Pat Naughtin
Geelong, Australia
On 2009/04/10, at 7:40 PM, STANLEY DOORE wrote:
I am NOT advocating larger multiple units than the kL (m^3).
Larger multiples than the kL would be too complex, cumbersome and
not user-friendly.
Virtually all people are accustomed to the L and submultiples
thereof as they buy medicine and products in stores.
The kL would be very useful for things such as rain barrels,
ponds, stream flow and other every day things to which people can
relate. People can relate to the kL which is a clean and useful
expression of everyday large volume. In the case of river flow and
water and sewage systems, the use of gallons per minute are
incomprehensible because it has no easy direct relationship to SI
volume whereas kL (cubic meters) do. The use of L and not kL is
also incomprehensible for stream flow because the numbers are so
large.
The NIST should be the leader in advocating the use of kL in the
public domain. The cubic meter and multiples and submultiples
thereof should be used in engineering and science.
To be consistent, those who do not advocate the use of the kL for
everyday use also should be against the use of the L and
submultiples thereof.
Stan Doore
----- Original Message ----- From: <[email protected]>
To: "U.S. Metric Association" <[email protected]>
Sent: Wednesday, April 08, 2009 2:02 PM
Subject: [USMA:44488] Re: FPLA 2010
Stan and Pierre,
I think you have some good arguments for allowing larger multiples
of the liter in *common parlance*.
If you are able to persuade the CCU, CIPM, and NIST to accept
multiples greater than one, I'll be among the last to object, but
in Science and Technology, I'm with John. The coherence of SI is
more important, without the liter and its multiples, except,
perhaps, in medical practice.
Gene.
---- Original message ----
Date: Wed, 8 Apr 2009 10:39:48 -0400
From: Pierre Abbat <[email protected]>
Subject: [USMA:44483] Re: FPLA 2010
To: "U.S. Metric Association" <[email protected]>
On Wednesday 08 April 2009 08:32:21 STANLEY DOORE wrote:
I disagree with the NIST in the case of kL because L is used
widely and
well known in the public sector. Are you suggesting that mm^3
be used
instead of L? Stan Doore
I too disagree with the NIST. A liter is a cubic decimeter, a
kiloliter is a
cubic meter, a megaliter is a cubic decameter, a gigaliter is a
cubic
hectometer, a teraliter is a cubic kilometer, a petaliter is a
cubic - what?
You can't express the petaliter as the cube of a named unit.
Likewise the
exaliter. Contrariwise, you can't express the cubic yottameter or
cubic
zeptometer as a prefixed liter.
As to the tonne, I wouldn't use it with any prefix. There are so
many kinds of
tons and tuns that just saying "tonne" instead of "megagram" is
not worth the
loss of clarity.
The stere has been deprecated, but I think it's still useful as a
jargon unit,
since it has only one syllable compared to four for both
alternatives. I
still sometimes think in steres, since my father grew up with the
unit.
Pierre
Pat Naughtin
PO Box 305 Belmont 3216,
Geelong, Australia
Phone: 61 3 5241 2008
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