New Holland E70SR, Workshop Manual

Page: 16 / 51

1. OUTLINE
1-6
1.2 INTERNATIONAL UNIT CON-
VERSION SYSTEM
(Based on MARKS’ STANDARD
HANDBOOK FOR MECHANI-
CAL ENGINEERS)
Introduction
Although this manual includes International System of
Unit and Foot-Pound System of Units, if you need SI
unit, refer to the following international system of units.
Given hereinafter is an excerpt of the units that are re-
lated to this manual.
1. Etymology of SI Unites
French : Le Systeme International d’ Unites
English : International System of Units
2. Construction of SI Unit System
(1) Base units
(2) Supplementary units
(3) Derived Units
(4) Derived Units bearing Peculiar Designations
Table 1-1
QUANTITY UNIT SYMBOL
Length meter m
Mass kilogram kg
Time second s
Electric current ampere A
Thermodynamic
temperature
kelvin K
Amount of sub-
stance
mol mol
Luminous
intensity
candela cd
Table 1-2
QUANTITY UNIT SYMBOL
Plane angle radian rad
Solid angle steradian sr
SI unit
system
Prefixes of SI
(n-th power of 10, where n is an integer)
Table 1- 5
SI units
Base units
Table 1-1
Supplemen
tary units
Table 1-2
Derived units
of base units
Table 1-3
Derived units
bearing peculiar
designations
Table 1-4
Derived
units
Table 1-3
QUANTITY UNIT SYMBOL
Area square meter m
2
Volume cubic meter m
3
Velocity meter per second m/s
Acceleration meter per second squared m/s
2
Density kilogram per cubic meter kg/m
3
Table 1-4
QUANTITY UNIT SYMBOL FORMULA
Frequency hertz Hz 1/s
Force newton N kg • m/s
2
Pressure and
Stress
pascal Pa N/m
2
Energy, Work
and Quantity of
heat
joule J N•m
Power watt W J/s
Quantity of
electricity
coulomb C A•s
Electric poten-
tial difference,
Voltage, and
Electromotive
force
volt V W/A
Quantity of
static electricity
and Electric
capacitance
farad F C/V
Electric
resistance
ohm V/A
Celcius
temperature
celcius
degree or
degree
C
(t+273.15)K
Illuminance lux lx l m/m
2