# # Copyright (c) 1998 The Regenstrief Institute. All rights reserved. # # This program is free software; you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation; either version 2 of the License, or # (at your option) any later version. # # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # # You should have received a copy of the GNU General Public License # along with this program; if not, write to the Free Software # Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. # # Author: Gunther Schadow. # # $Id: ISO2955-ci.units,v 1.1 1998/07/23 20:42:22 schadow Exp $ # ####################################################################### # # ISO 2955 SI AND OTHER UNITS (CASE INSENSITIVE) # # ASCII character set, no Omega, degree or mu # CASE INSENSITIVE # # 3. MULTIPLES OF SI-UNITS (PREFIXES) # # TABLE 5: # PREFIX EX 1E18 # EXA PREFIX PE 1E15 # PETA PREFIX T 1E12 # TERA PREFIX G 1E9 # GIGA PREFIX MA 1E6 # MEGA PREFIX K 1E3 # KILO PREFIX H 1E2 # HECTO PREFIX DA 1E1 # DEKA PREFIX D 1E-1 # DECI PREFIX C 1E-2 # CENTI PREFIX M 1E-3 # MILLI PREFIX U 1E-6 # MICRO PREFIX N 1E-9 # NANO PREFIX P 1E-12 # PICO PREFIX F 1E-15 # FEMPTO PREFIX A 1E-18 # ATTO # # BASE SI UNITS # DIMENSIONS 7 # BASE M # LENGTH METRE BASE G # MASS GRAM(*) BASE S # TIME SECOND BASE A # ELECTRIC CURRENT AMPèRE BASE K # THERMODYNAMIC TEMPERATURE KELVIN BASE MOL # AMOUNT OF SUBSTANCE MOLE BASE CD # LUMINOUS INTENSITY LUMEN # # *) SI WANTS KG INSTEAD OF G AS BASE UNIT FOR MASS, YET, WE # REQUIRE BASES TO BE ATOMS # # # SUPPLEMENTARY SI UNITS # RAD = 1 1 METRIC # PLAIN ANGLE RADIAN SR = 1 1 METRIC # SOLID ANGLE STREADIAN # # DERIVED SI UNITS WITH SPECIAL NAMES # HZ = 1 S-1 METRIC # FREQUENCY HERZ N = 1 KG.M/S2 METRIC # FORCE NEWTON PAL = 1 N/M2 METRIC # PRESSURE, STRESS PASCAL J = 1 N.M METRIC # ENERGY, WORK, JOULE # QUANTITY OF HEAT W = 1 J/S METRIC # POWER WATT C = 1 A.S METRIC # ELECTRIC CHARGE COULOMB # QUANTITY OF ELECTRICITY V = 1 J/C METRIC # ELECTRIC CHARGE VOLT # POTENTIAL DIFFERENCE # TENSION, ELECTROMOTIVE FORCE F = 1 C/V METRIC # ELECTRIC CAPACITANCE FARAD OHM = 1 V/A METRIC # ELECTRIC RESISTANCE OHM SIE = 1 OHM-1 METRIC # ELECTRIC CONDUCTANCE SIEMENS WB = 1 V.S METRIC # FLUX OF MAGNETIC INDUCTION WEBER # MAGNETIC FLUX T = 1 WB/M2 METRIC # MAGNETIC FLUX DENSITY TESLA # MAGNETIC INDUCTION H = 1 WB/A METRIC # INDUCTANCE HENRY CEL = CEL(1 K) NONMETRIC # CELSIUS TEMPERATURE DEGREE CELSIUS LM = 1 CD.SR METRIC # LUMINOUS FLUX LUMEN LX = 1 LM/M2 METRIC # ILLUMINANCE LUX BQ = 1 S-1 METRIC # ACTIVITY (OF A RADIONUCLIDE) BECQUEREL GY = 1 J/KG METRIC # ABSORBED DOSE, SPECIFIC GRAY # ENERGY IMPARTED, KERMA, # ABSORBED DOSE INDEX SV = 1 J/KG METRIC # DOSE EQUIVALENT SIEVERT # # OTHER UNITS FROM ISO 1000 # DEG = .01745329251994329576 RAD NONMETRIC # PLANE ANGLE DEGREE MNT = 1 DEG/60 NONMETRIC # PLANE ANGLE MINUTE SEC = 1 MNT/60 NONMETRIC # PLANE ANGLE SECOND GON = 0.9 DEG NONMETRIC # PLANE ANGLE GRADE(*) L = 1 DM3 METRIC # VOLUME LITRE ARE = 100 M2 NONMETRIC # AREA ARE HAR = 100 ARE NONMETRIC # AREA HECTARE MIN = 60 S NONMETRIC # TIME MINUTE HR = 60 MIN NONMETRIC # TIME HOUR D = 24 H NONMETRIC # TIME DAY ANN = 365.2422 D NONMETRIC # TIME YEAR(*,+) # ISO 2955 DEFINES THE GRAM HERE, WHICH WE DID ABOVE TNE = 1E3 KG METRIC # MASS TONNE BAR = 10E5 PA METRIC # PRESSURE OF FLUID BAR P = 0.1 N.S/M2 METRIC # DYNAMIC VISCOSITY POISE(*) ST = 1 CM2/S METRIC # KINEMATIC VISCOSITY STOKES(*) EV = 1.60219E-19 J METRIC # ENERGY ELECTRONVOLT U = 1.66053E-27 KG METRIC # MASS OF AN ATOM ATOMIC MASS ASU = 149597.870 MM NONMETRIC # LENGTH ASTRONOMIC UNIT PRS = 206265 AU NONMETRIC # LENGTH PARSEC # # *) UNIT NOT LISTED IN ISO 1000 # # +) ASSUMING A MEAN SOLAR YEAR NOT A MEAN CALENDAR YEAR, WHICH WOULD # BE 365.25 DAYS. # # SUMMARY OF CONFLICTS: # # CONFLICT: P-EV VS. PE-V TYPE II (METRIC-METRIC) # CONFLICT: CD VS. C-D TYPE IVa (METRIC-NONMETRIC) #