On 2004 May 23 , at 4:57 PM, MightyChimp wrote:
Is the unit "bel' a part of SI or one of the units accepted along with SI?
Don't you have a copy of the BIPM document "The International System of Units (SI)"? You really should. That's where all matters of SI units is spelled out. You really shouldn't be making other people look up things for you that you can easily look up yourself.
To get this publication, you can go to the BIPM home page at:
http://www.bipm.fr/
and navigate through it to the publication needed, or you can go directly to the page:
http://www1.bipm.org/en/si/si_brochure/
from which you can download the entire 152 page booklet (and the year 2000 supplement). Then either print it or save it electronically and you'll always have all the authoritative information at your fingertips.
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In answer to your question about the bel, it is listed on page 105 of this SI publication as one of the "Non-SI units accepted for use with the International System". In a footnote, the decibel is also indicated as merely a submulitple of the bel (and therefore, also it is also "non-SI" but "accepted for use with SI").
Regards, Bill Hooper Fernandina Beach, Florida, USA ======================== SIMPLIFICATION begins with SI ========================
