1、UDC 001.6 (083.3) : 389.1 6 : 53.081 : 001.4 : 003.62 DEUTSCHE NORMEN February 1978 . Submultiples and Multiples for General Use Units 1301 Pari 2 !inheiten; Allgemein angewendete Teile und Vielfache or connection with the International Standard IS0 1000- 1973 see DIN 1301 Part 1. o make it easier f
2、or the user to select units, the SI units are given for quantities widely used in science and technology, s well as further units and examples of the selection of units with prefixes for decimal submultiples and multiples. -he selection shown is not intended to be restrictive, but instead to prove h
3、elpful in presenting values of quantities in n identical manner in the various sectors of technology. For some needs (for example, in applications in research and ducation) it is recognized that greater freedom will be required in the choice of decimal submultiples and multiples If SI units than is
4、exemplified in the Table which follows. -he standards committees are recommended to make appropriate provisions when, in specific ranges of application, a ieed exists for further submultiples and multiples of units denoted by prefixes. 4 separate Standard is in course of preparation for special unit
5、s in acoustics, informatics and communications engi- leering. Jot all the names of quantities in DIN 1304 have been adopted in the list below. 1 No according to DIN 1304 2 Quantity SI unit 1 Length and powers thereof 1.1 1.3 1.5 Plane angle Solid angle Length 3 rad (radian) sr (steradian) m (metre)
6、4 Selected decimal su bmu I tiples and multiples of the SI unit prad mrad nm IJm mm cm km Non SI units Selected decimal submultiples multiples of the units in column 5 Unit 7 Remarks and information concern i ng units for specific ranges of application “ (second) (minute) gon (Gon) O (degree) mgon c
7、gon The angle units degree, minute and second should not be used simultaneously in technical calculations, e.g. not a = 330 17 27.6“; instead it is preferable to stati a = 33.291. 71 1 gon = - rad 200 71 1 O = - rad 180 see DIN 1315 The international nautical mile is used in air and sea navigation.
8、1 international nautical mile = 1852rn Continued on pages 2 to 11 Alleinverkauf der Normen durch Beuth Verlag GrnbH, Berlin 30 und Kln i O1 .BO DIN 7301 Teil2 engl. Preisgr. 8 Vertr.-Ni-. 0108 I Page 2 DIN 1301 Part 2 Rotational speed, rotational frequency Angular velocity Velocity 516 s-1 radis m /
9、s 7 Acceleration 1 mis2 2 3 4 Non SI units Selected decimal 1 bmu It i pl es and mu It iples of the units in column 5 Selected decimal ubmultiples and multiples of the Si unit Remarks and informatio concerning units for specific ri of application No according to )IN 1304 SI unit Quantity Unit 1.13 W
10、avelength Pm nm Pm mm mm2 cm2 dm2 m are (symbol: a) and h (symbol: ha) are usec estate and plots of gri Ia =O2m2 1 ha=Im2 1.14 Area m2 (square metre) km2 m3 (cubic metre) mm3 cm3 dm3 1.16 Volume 11 = 1 dm3 ni :I Il I (litre) 2 Time and space ns IJS ms ks 2.1 Time S (second) 2.2 ns IJS ms Periodic ti
11、me, period of oscillation Is 2.4 kHz MHz GHz THz 2.14 2.15 m/h 1 knot = 1 n3utical m hour = 0.514 m/s 2.23 1 3.6 1 kmlh = -m/s 2.25 DIN 1301 Part 2 Page 3 3 4 5 6 Non SI units 7 Selected decimal ;ubmu Itiples and multiples of the SI unit I Remarks and information concern i ng units for specific rang
12、es of application Selected decimal ubmultiples and multiples of the No according to 3IN 1304 Quantity SI unit Unit units in column 5 I 3 Mechanics 3.1 Mass For u (atomic mass unit) sec DIN 1301 Part 1, February 1978 issue, Table 4. Mass units are also used for weight as the result of weigt- ing quan
13、tities of goods, see DIN 1305. ldt=lOOkg The carat (symbol: Kt) is used to indicate the mass of precious stones. 1 Kt = 0.29 The tex (symbol: tex) is used in the textile industry. 1 tex = 1 g/km see DIN 60905 Part 1 U t (ton) - t/m3 kg/l kg gram) (kilo- dt g/m I 3.2 Mass related to length kg/m kg/m3
14、 kg . m2 3.4 Density 1 g/cm3 = 1 kg/dm3 = 1 Mg/m3 = 1 t/m3 = 1 g/m = 1 kg/l jeeDIN 1306 3.9 Moment of inertia -orce UN mN kN MN ;ee DIN 1305 3.1 O 3.13 3.16 N newton) V.m kg mls JN .m nN am tN am UN em orque Aomentum I kg-m/s=IN.s 3.17 ingular momentum kg. m2/s I kg.mz/s=l N.m.s 3.1 8 ressure IPa n
15、Pa Pa A Pa Pa ibar nbar Pa (pascal bar = lO5Pa, seeDIN 1314 bar Page4 DIN 1301 Part 2 5j6 Non SI units 7 4 1 2 3 Selected decimal Jbmuitipies and mu I tip les of the units in column 5 Selected deci ma I Jbmuitipies and mu It iples of the SI unit Remarks and information concern i ng units for specifi
16、c ranges of application No ccording to ,IN 1304 SI unit Quantity Unit N/m2, Pa 3.22 3.23 Stress kPa N/mmz MPa G Pa 1 MPa = 1 N/mm2 see DIN 1342 mPa . s Dynamic iiscosity 3.33 3.34 Pa . s mm2ls see DIN 1342 Kinematic b4scosity Surface tension m2/s mN/m 3.35 Nlm J (joule) dgu : I The units keV, MeV an
17、d GeV are used in atomic and nuclear physics, in accelera- tor and reactor technology and in the electricity supply industry. eV (eiectron- volt) W.h 3.39 3.40 Work Energy keW MeV GeV kW * h MW-h GW-h TW.h mJ kJ MJ GJ TJ 1 W h = 3.6 kJ see DIN 1345 3.45 Power tJw mW kW MW GW W (watt) 4 Electricitv a
18、nd magnetism The ampere hour (symbol: A - h) is used in connection with accumu lators. 1 A*h=3.6kC see DIN 1324 see DIN 1324 -1 1 C/mm2 = 1 MC/m2 DIN 1301 Part 2 Page 5 5 4 6 7 1 2 3 Non SI units Quantity Selected deci ma I #u bmultiples and mu Itiples of the SI unit pC/m3 mC/m3 kC/m3 Clcm3 MC/m3 C/
19、mmJ Selected decimal u bmu I tiple and multiples of the units in column 5 Remarks and information concerning units for specific ranges of application No according to DIN 1304 SI unit Unit see DIN 1324 1 C/cmJ = 1 MC/m3 Volume density of charge 4.4 C/m3 see DIN 1324 4.5 Electric flux C see DIN 1324 E
20、lectric flux density 4.6 CIm2 C/m* 4.7 Electric polar iza ti on see DIN 1324 see DIN 1324 Electric dipole moment Cem 4.8 V (volt) IJV mV kV MV 4.9 4.10 Electric potential potential difference see DIN 1323 pV/m mV/m V/cm V/mm kV/m MV/m see DIN 1324 Electric field strength 4.11 4.12 Vlm 1 V/mm = 1 kV/
21、m aF PF nF IJF mF see DIN 1357 Electric capacity F (farad) F /m pF/m nF/m pF/m 4.13 Permittivity, dielectric constant see DIN 1324 Page 6 DIN 1301 Part 2 7 3 4 1 2 Selected decimal ,ubmultiples and multiples of the SI unit Non SI units Selected decimal ,ubmultiples and multiples of the units in colu
22、mn 5 Remarks and information concerning units for specific ranges of application No iccording to )IN 1304 4.1 7 SI unit Quantity Unit PA PA nA mA kA MA Electric current see DIN 1324 A (ampere) Alm2 see DIN 1324 4.18 Current density kA/m2 Alcm2 Almm2 MAfm2 1 Almm2 = 1 MA/m2 Alm see DIN 1324 Linear cu
23、rrent density 4.19 4.21 Alcm Almm kA/m 1 A/mm = 1 kA/m see DIN 1325 Magnetic potential differencl mA kA MA A see DIN 1325 Alm 4.22 Magnetic field strength A/cm Almm kA/m mWb 1 A/mm = 1 kA/m see DIN 1325 4.23 Magnetic flux Wb (weber) _ see DIN 1325 nT mT IJT 4.25 Magnetic flux density T (Tesla) Wb/m
24、see DIN 1325 1 Wb/mm = 1 kWb/m Magnetic vector potential 4.26 4.27 Wb/mm kWb1m see DIN 1325 PH PH nH mH Inductance H (henry) nH/m pH/m see DIN 1325 Permeability 4.28 4.32 H /m see DIN 1325 1 A/mm = 1 kAfm Magnetization Alm Almm kA/m DIN 1301 Part 2 Page 7 4 516 2 7 3 1 No according to DIN 1304 4.33
25、4.34 4.35 4.36 4.37 4.38 4.39 4.40 4.41 4.42 4.44 4.46 I SI unit Non SI units - Unit Selected decimal ubmultiples and mu It i ples of the units in column 5 Selected decimal ubmultiples and multiples of the SI unit Remarks and information concerning units for specific ranges of application Quantity s
26、ee DIN 1325 mT Magnetic polarization T see DIN 1325 Electromagnetic moment Reluctance H -1 see blN 1325 see DIN 1325 Permeance H PR mR kR MR GR TR see DIN 1324 Resistance R (ohm) see DIN 1324 cis mS kS Conductance S (siemens) R2.m Slm R nSZ . m pR.m mS2.m SZ . cm kSZ . m MR.m GR.m FR. cm and R. mm*l
27、m are also used. 1 pR.cm=IO-*R.m 1 R e mm*/m = IO4R. n Resistivity see DIN 1324 see DIN 1324 Conductivity kS1m MS/m mn kR MSZ see DIN 40 110 Reactance see DIN 40 110 Susceptance cis mS kS S see DIN 40 110 mSZ kR MR Impedance see DIN 40 110 Admittance Fis mS kS S I Page 8 DIN 1301 Part 2 2 3 4 5 1 6
28、7 Power nW PW Selected decimal su bmu Itiples and mu Itiples of the SI unit mJ kJ Selected decimal submultiples and multiples of the units in column 5 see DIN 1345 Remarks and information concerning units for specific ranges of application No according to DIN 1304 4.50 Quantity Si unit Unit In elect
29、rical power engi- neering, apparent power is stated in volt-amperes (symbol: VA) and reactive power in Var (symbol: var see DIN 40 110 mW Iw IkW 5 Thermodynamics and heat transfer 5.1 see DIN 1345 mK Thermodynamic temperature (Kelvin) Temperature 5.2 For Celcius temperature intervals and differences
30、, “C can be used instead of K see DIN 1345 For indicating Celsius tern. peratures, the unit name degree Celsius (symbol: OC is used as a special name fc the kelvin (symbol: K), Celsius temperatu re 5.3 5.5 (degree Celsius) I seeDIN 1345 I I I see DIN 1345 I I (Thermal) coeff i- cient of volumetric e
31、xpansion 5.7 5.27 J Internal energy MJ GJ TJ see DIN 1341 see DIN 1341 kW see DIN 1341 5.8 Iw Heat flow rate 5.13 Thermal W/(m KI Coefficient of heat transfer 5.14 5.17 I I I l I kJ/K I I seeDIN 1345 Heat capacity Specific J/(kg - K) heat capacity see DIN 1345 kJ/(kg - K) 5.18 5.23 Entropy I J/K I l
32、 I see DIN 1345 kJ/K 5.24 Specific entropy I J/(kgK see DIN 1345 kJ/(kg * K) DIN 1301 Part 2 Page 9 4 5 6 2 3 Non SI units according DIN 1304 7 I 5*28 Quantity Specific enthalpy Specific internal energy Remarks and information concerning units for specific ranges Selected decimal su bmultiplec Selec
33、ted decimal submultiples multiples of the CI unit Unit and SI unit and multiples of application of the units in column 5 J/kg see DIN 1345 kJ/kg MJ/kg 6 Physical chemistry and molecular physics 6.12 6.14 - 6.1 5 6.1 7 6.18 Amount of substance Concentration Molar volume Molality Molar mass Molar entr
34、opy Molar internal energy Molar heat capacity Diffusion coefficient F 6.35 pmol mmol mol (Mol) kmol mollm3 see DIN 1310 kmol/m3 mol/dm3 mol/ 1 kmol/m3 = 1 mol/ cm3/mol seeDIN 1345 dmJ/mol /mol m3/m0l mmol/kg see DIN 1310 mol/kg g/mol see DIN 1345 kg/mol J/(mol. K) see DIN 1345 see DIN 1345 J/mol kJ/
35、mol J/(mol. K) see DIN 1345 see DIN 5491 cm2ls m2/s 7 Light and related electromagnetic radiations Page 10 DIN 1301 Part 2 5 3 6 9.1 Activity of a Bq radioactive becquerel) substance see DIN 681 4 Part 4 7 1 2 Non SI units Selected decimal ubmultiples and multiples of the SI unit Selected decirtial
36、submultiples and mu Itiples of the units in column 5 Remarks and information concerning units for specific ranges of application No according to )IN 1304 Quantity SI unit Unit 7.6 Luminous exitance see DIN 5031 Part 3 see DIN 5031 Part 3 7.7 Illuminance 7.8 Light exposure see DIN 5031 Part 3 The dio
37、pter (symbol: dpt) is used for indicating the refractive power of optical systems. 1 dpt = 1 m-1 7.13 Refract ive power of lenses m-1 Radiant energy J I see DIN 5496 7.14 7.16 _ Radiant power Radiant intensity Radiance see DIN 5496 see DI N 5496 7.19 see DIN 5496 7.20 see DIN 5496 7.21 Rad ant exita
38、nce 7.22 Irradiance see DI N 5496 9.46 see DIN 6814 Part 3 Energy dose (gray) 9.47 see DIN 6814 Part 3 see DIN 6814 Part 3 9.50 see DIN 6814 Part 3 9.54 I londose I I see DIN 6814 Part 3 9.55 I Ion dose rate see DIN 6814 Part 3 Alkg 10 Acoustics 10.3 Sound particle velocity mmls ms Velocity of sound
39、 10.4 m/s DIN 1301 Part 2 Page 11 4 516 3 1 7 2 Non SI units Selected decimal submultiple multiples of the units in column 5 Unit Selected decimal u bmultiples and multiples of the SI unit Remarks and information concerning units for specific ranges of application No according to )IN 1304 Quantity SI unit m3/s Sound energy flux Sound power 10.5 PW P w mW kW 10.7 W 10.8 Sound intensity Specific acoustic impedance Pa . sim 10.9 10.10 Acoustic impedance Pa . s/m3 10.1 1 Mechanical impedance N s/m 10.19 m2 Equivalent absorption area Reverberation time S 10.20
