Re: Gum Arabic and =?UNKNOWN?Q?Baum=C8?=
SCHRAMMR@WLSVAX.WVNET.EDU
Mon, 15 Jul 1996 21:44:05 -0400 (EDT)
Pardon, Le densimetre est pour les mesures de la presanteur specifique
(densite) n'est pas? En Anglais: density and specific gravity are not
the same thing. A hydrometer (densimetre) measures specific gravity
which is a ratio of the density of a liquid to the density of a standard.
The standard is usually water which has a density of 1 gm/cc so that
specific gravity and density are numerically equal IF you are using
the SI system and the hydrometer is calibrated using water as a standard.
There are special hydrometers calibrated for other standards and systems
such as the old British System which even the British no longer use, but
which we folks in the Etats-Unis insist on using. BTW my Frence-English
gives me the same word for specific gravity and density, that is
"densite'." (desole'- I meant to type "French-English dictionary")
Sorry to be so "picky" about this but we physics professors can't
help it. ;-)
Bob Schramm