MadSci Network: Anatomy
Query:

Re: How big is human fat? (volume/weight)

Date: Fri Jan 23 11:15:03 1998
Posted By: Scott Dietert, M.D. Pathology/Anatomy, retired
Area of science: Anatomy
ID: 884879976.An
Message:

Dear Nathan,
I'll have to answer your question by assuming that
"big" and "volume/weight" is a question related to
the specific gravity of human fat, i.e., the
weight of human fat per unit volume (its density)
as compared with the density of water (in the same
units).  I hope this is what you would like to
know.
Both references provide measurements of a variety
of animal fats, of which human fat is but one
example.  In the following list the capital letter
fat values were obtained from reference #1, while
the small case measurements came from reference
#2.

Source of fat------------Specific Gravity
HUMAN DEPOT FAT--- 0.918
human fat---0.903
BEEF BUTTER FAT---0.911
beef butter fat---0.907-0.912
NEET'S FOOT OIL, BEEF---0.910
MUTTON---0.945
LARD, SWINE---0.919
lard oil---0.913-0.915
chicken fat---0.924
deer fat---0.962-0.967
horse fat---0.919-0.933

This list illustrates at least two scientific
"truths:" 1)variation in results inspite of
repeated accurate measurements; 2)similar things,
i.e., animal fats, are often surprisingly
similar!  A question: Will fat float or sink in
water?  Remember these handbooks; they can be
immensely valuable when looking for values,
formulas, conversions, and tabular data.  Good
luck in your lifelong learning.
REFERENCES:
1)CRC Handbook of Chemistry and Physics, 72nd
Edition, 1991-92
2)Lange's Handbook of Chemistry, 8th Edition, 1952




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