Standard Components For Plastic Mold 2021

〔 TECHNICAL DATA 〕 SYSTEME INTERNATIONAL D’UNITES (SI) REFERENCE: JIS8000-1 (2014) End of JIS Handbook

1-3. Integral exponents in SI units (1) Prefixes

1. International units (SI) and the method of use 1-1. Sphere of application

The multiple for composing the integral exponents of 10 in SI units , the names of prefix and their symbols are shown in Table 3 . Table 3. Prefixes

This standard specifies how to use the International System of Units (SI) and other international unitary systems, as well as units used in correlation with units from international systems, and other units which may be used together.

1-2. Terminology and definitions

Main terminology and its definition used in this specification is as follows: (1) International System of Units (SI) Coherent system of units adopted and recommended by the International Committee on Weights and Measures. It contains base units, supplementary units and units derived from them, and their integral ex- ponents to the 10th power. SI is the abbreviation of Systeme International d'Unites. (2) SI unit SI unit is a generic term for base units, supplementary units, and derived units included in the International System of Units (SI). (3) Base unit The units given in Table 1.

Multiple to be combined with unit

Prefixes

Name

Sign

Name

Sign

Name

Sign

10 24 10 21 10 18 10 15 10 12 10 9 10 6

10 3 10 2 10 1 10 -1 10 -2 10 -3 10 -6

10 -9 10 -12 10 -15 10 -18 10 -21 10 -24

Yotta Zetta

Y Z E P T G

Kilo

k h

Nano

n p

Hecto Deca Deci Centi

Pico

Exa

Femto

Peta Tera Giga

d c

Atto

a z y

Zepto Yocto

Milli

Table 1. Base unit

Mega

Micro

Volume

Unit

Sign

Definition

2. Table of conversion rate of units that cause problem upon switchover to SI units (The units contained in bold lines are SI units.)

1 299 792 458

Length

Meter

m The meter is the distance light travels in

of a second in a vacuum.

The kilogram is a unit of mass defined by the value of Planck’s constant as 6.62607015 × 10 -34 Joule·second (Js). The second is a duration of 9, 192, 631, 770 periods of radiation corresponding to the transition between two hyperfine levels of the ground state of an atom of cesium-133. The ampere is a unit of electric current defined by fixing elementary electric charge to be 1.602 176 634 × 10 -19 C (1C = 1As). The kelvin is a unit of absolute temperature defined by fixing Boltzmann's constant to be 1.380 649 × 10 -23 J/K. The mole is the amount of substance of a system composed of aggregation of as many elementary entities ( 1 ) as 6.022 140 76 × 10 23 . The candela is defined as the luminous intensity in a given direction of a light source which emits a monochrome radiation at a frequency of 540 × 10 12 Hertz and has a radiant intensity of 1 683 watt per steradian in the specified direction.

Pa • s

Mass

Kilogram

dyn

kgf

1.019 72 × 10 -1 1.019 72 × 10 -6

1 × 10 1 × 10 -2

1 × 10 3

1 × 10 5

Time

Second

1 × 10 -5 9.806 65

1 × 10 -3 1 × 10 -1

Electric current

Ampere

9.806 65 × 10 5

1 × 10 2

Thermodynamic temperature

Note) 1P = 1dyn • s/cm 2 = 1g/(cm • s) 1Pa • s = 1N • s/m 2 , 1cP = 1mPa • s

Kelvin

Amount of substance

Mole

mol

Pa or N/m 2

MPa or N/mm 2

m 2 /s

kgf/mm 2

kgf/cm 2

cSt

1 × 10 6

1 × 10 -6

1.019 72 × 10 -7 1.019 72 × 10 -5 1.019 72 × 10 -1 1.019 72 × 10

1 × 10 4 1 × 10 -2

Luminous intensity

Candela

1 × 10 6

1 × 10 -6 1 × 10 -4

9.806 65 × 10 6 9.806 65 × 10 4

1 × 10 2

9.806 65

Note ( 1 ) The elementary entity specified here is an atom, molecule, ion, electron, photon or other entity.

9.806 65 × 10 -2

1 × 10 -2

Note) 1St = 1cm 2 /s, 1cSt = 1mm 2 /s

Note) 1Pa = 1N/m 2 , 1MPa = 1N/mm 2

(4) Derived units

The units expressed algebraically (using mathematical symbols for multiplication and division) in terms of the base units and supplementary units. Besides, the derived units that have proper names are shown in Table2 .

mmHg or Torr

Examples of the units derived from the base units

Table 2. The derived units having proper names

kPa

MPa

atm

mmH 2 O

bar

kgf/cm 2

Derived units

Derived units Expressing method by base unit or sup- plementary unit, or by other derived units Unit Sign

Volume

1 × 10 -3

1 × 10 -6 1 × 10 -3

1 × 10 -5 1 × 10 -2

1.019 72 × 10 -5 1.019 72 × 10 -2

9.869 23 × 10 -6 9.869 23 × 10 -3

1.019 72 × 10 -1 1.019 72 × 10 2 1.019 72 × 10 5 1.019 72 × 10 4

7.500 62 × 10 -3

Volume

Unit

Sign

1 × 10 3 1 × 10 6 1 × 10 5

7.500 62

m 2 m 3

Area

Square meter Cubic meter Meter/second Meter/second 2

1 × 10 3 1 × 10 2

1 × 10 1.019 72 × 10 9.869 23

7.500 62 × 10 3 7.500 62 × 10 2 7.355 59 × 10 2 7.600 00 × 10 2 7.355 59 × 10 -2

rad 1rad = 1m/m

Volume Velocity

Plane angle Solid angle Frequency

Radian

1 × 10 -1

9.869 23 × 10 -1 9.678 41 × 10 -1

= 1m 2 /m 2

1.019 72

Steradian

m/s

1sr

Hz 1 Hz = 1 s -1

Hertz

m/s 2

9.806 65 × 10 4 1.013 25 × 10 5

9.806 65 × 10 9.806 65 × 10 -2

9.806 65 × 10 -1

1 × 10 4

Acceleration

= 1 kg • m/s 2

Force

Newton Pascal

N 1 N

m -1

Wave numbers

Every meter

1.013 25 × 10 2 9.806 65 × 10 -3 1.333 22 × 10 -1

1.013 25 × 10 -1 9.806 65 × 10 -6 1.333 22 × 10 -4

1.033 23 × 10 4

1.013 25

1.033 23

Pa 1 Pa = 1 N/m 2

Pressure, stress Energy, work, heat

kg/m 3

Density

Kilogram every cubic meter

9.806 65 × 10 -5 1.333 22 × 10 -3

1 × 10 -4

9.678 41 × 10 -5 1.315 79 × 10 -3

9.806 65

= 1 N • m

Joule

J 1 J

A/m 2

Electric current density Ampere every square meter Magnetic field strength Ampere every meter

1.333 22 × 10 2

1.359 51 × 10 -3

1.359 51 × 10

Work rate, process rate, power, electric power Electric charge, quantity of electricity Potential, potential difference, voltage, electromotive force Electrostatic capacity, capacitance

W 1 W = 1 J/s

A/m

Watt

Note) 1Pa = 1N/m 2

Concentration (of substance) Specific volume

mol/m 3

Mole every cubic meter

= 1 A • s

Coulomb

C 1 C

kW • h

kgf • m

kcal/(m • h • °C) 8.604 22 × 10 -1

W/(m • K)

kcal

m 3 /kg cd/m 2

Cubic meter every kilogram Candela every square meter

= 1 J/C

2.777 78 × 10 -7 1.019 72 × 10 -1 2.390 06 × 10 -4

Bolt

V 1 V

Luminance

3.600 × 10 6

3.670 98 × 10 5

8.604 22 × 10 2 2.343 85 × 10 -3

1.162 22

= 1 C/V = 1 V/A = 1 Ω -1

Farad

F 1 F

2.724 07 × 10 -6

9.806 65

Electric resistance

Ohm

Ω 1 Ω S 1 S

kcal/ (m 2 • h • °C) 8.604 22 × 10 -1

W/(m 2 • K)

4.184 00 × 10 3

1.162 22 × 10 -3 4.266 48 × 10 2

Conductance Magnetic flux

Siemens

Wb 1 Wb = 1 V • s

Weber

Note) 1J = 1W/s, 1J = 1N/m

Magnetic flux density, magnetic induction

1.162 22

= 1 Wb/m 2 = 1 Wb/A

Tesla

T 1 T

kgf • m/s

kcal/h

1.019 72 × 10 -1 1.359 62 × 10 -3 8.604 22 × 10 -1

Inductance

Henry

H 1 H

kcal/(kg • °C) cal/(g • °C)

J/(kg • K)

Celsius degree or degree

1.333 33 × 10 -2 8.437 86

°C 1 t °C = (t + 273.15) K lm 1 lm = 1 cd • sr

9.806 65

Celsius temperature

2.390 06 × 10 -4

× 10 2

× 10

6.328 40 × 10 2

7.355

7.5

Light flux

Lumen

4.184 00 × 10 3

= 1 lm/m 2

Illumination Radioactivity

Lux

lx 1 lx

1.185 13 × 10 -1 1.580 18 × 10 -3

1.162 22

Bq 1 Bq = 1 s -1 Gy 1 Gy = 1 J/kg Sv 1 Sv = 1 J/kg

Becquerel

Note) 1W = 1J/s, PS: French horsepower

Absorbed radiation dose Gray

Radio equivalent Enzyme activity

Sievert

1211

1212

1kat = 1mol/s

Katal

kat