Page 495 - Chemical process engineering design and economics

Appendix 473

In addition, the American Metric Council has published Examples of SI Derived Units
an editorial guide that contains much information for Expressed in Terms of Base Units
authors, editors, secretaries, and other people involved
in publication. This is available through the American
National Metric Council, 1625 Massachusetts Ave. N.W., Quantity Symb
Washington, IX C. 20036,
area.......... .........square meter .................m"
volume....................cubic meter .
Note: ficpriitt,* «f thi* article ami guide wilt be r»adt> avaiiabh; t<> AlChK speed> velocity ........... jneter per second .............m/s
jfrMKps at tin c/iorA't; for fnstitulv business purpotes, Indimttual.i inter$st&t acceleration ...,....,..,-. .meter per secdnd
in c^iftien fur their fiemanal tute may r>l>tain tlttf reprint* /t>r Sl.SMi prepitid. squared....................m/a 3
In either t-i>*e terite; Publication* Ov.pt.. AlChK, 345 K. -I? St., New York,
N.Y.. 10017. kinematic
visciwhy ................square meter per
a
second ...,.........-,...,..m /s
A Word About the Guide wave number .............1 per meter...................m'" 1
density,
This guide, fnr the tt&e of SI units, origin&liy published in roaas density........... .kiJogram per cubic
tha May, 1971, issue of CIS P., Aas b&&n updated ond ex- meter..................... .kg/ m 3
pundad slightly since then to conform to present practices. current density............ampere per square
This material was prepared by Ewn Buck, staff engineer, meter ..................... A/ in 2
Unitin Carbide Corp., Sttuth Charleston, W. VtL, a jnrvrt- magnetic field
ber fifths Metncotinn Committee* strength.................ampere per meter ....... .....A/in
wmwmtration
(of amount
of substance) ...........mole per cubic
activity
(radioactive)..,.,.,.,..,! per second ...,..,.,.........»~l
specific volume ...........cubic meter per
kilogram... ....,.........,.m*/kg
luminance ................candola per square
meter,.................., ..e<l/m 2
angular
Oldshue Buck velocity .................radian per second ............rad/s
anguliir
acceieration.,.....,,... .radian per second
squared................... -rad; sT
Abbreviated Guide
for Use of the SI
These tables summarize the SI unit system adopted by SI Derived Units
the AlChR Council on March 19, 1977, for «»e within With Special Names
the AIChB after January 1, !y79. This unit system is 81 Unit
based on that documented in the National Bureau of
Standards (NB8) Special Publication 330, 1974 edition, Expression
titled 'The Internaf.imini System of Unite (SO," with the in terms of
following mmiiftt-fUUms; Quantity Name Symbol other units
1. The "year" (is a time unit has been added.
2. The symbol "L" rather than "1" is to he used as the frequimcy ................ .htrtst ....... .Hz ......... .s "
abbreviation for liter, which avoids possible (wnfusum with force ... ................... nuwtoH.. .. ..N .... .......kg- m/s<2
the numeral"!." pressure, stress..,.,,..... ..pascal .. , ...Pa ......... .N/(« 2
15
;l. The prefixes "peta" OO ) and "exa" (lO***) have
iieeti added. energy, work , quantity
Items 2 and 'A have W<*ii adopted l>y the NBS substHjucnt of heat .....,,,,.,.,.,. ..joule ........ •). ........... N • ra
to the appearance of Publication 31)0. power.
SI Base Units radiant fliu ............ .watt ....... AV. ......... ..I/s
Quantity Nami Symbol eiwtridty.
i;k*ctric charge .,.,..,., ,c*»«Iomb . . . .C .......... .A - s
lengt,h..,,.,.-...-.........,....... .meter.,....... ...m fektftm- potential.
mass.............................. .kilogram...,,... ,kg v^tmgc, (Ktieniial
time .,...,.............,.,.,.,... ..second...........s diCTerfiii-t!!. electro-
electric current ....................ampere ..........A motive force. ........... .volt ........ .V .......... ,W/ A
f,hermndyj)Hmi<! temperature.......kelvin ...........K :
amount of jjubfitance ...............mole............ ,mol capacitance ............. . .farad ..,.,. ,F .......... .C, V
lummous iniensity ................ .eandela..........ed electric
resistance ........... ....ohm ... . ....W .,,,.,. ..,-V/A
SI Supplementary Units wnductanw. .,.,...,,.... .siawns . . . . .S .....,..,. .A/ V
SI unit magm'tk tltix. ............ .webi»r . . .... .Wl> ...,..,. . V • s
Quantity Symbol magnetic flux
density. ................ .testa ....... ,T .......... ,Wb/ m w
plant- angle ,..,,..,....., .ratlinn ,...,..,..,,....... ,rad inductance ............... .henry ...... .(I .......... .Wb/ A
solid angle ................ateradinn ....,.,.,.,...„, ,»r I inn i nous flux ............ .lumen .... . Jm ........ ..cd- »f
illuminance ............ ...lux. ....... ,.lx ....... ..,,fd * «r.*m' i
CRP August 197
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