Terms Used In This Manual; Abbreviations And Standards; Unit Of Measurement - Mitsubishi S12A2 Service Manual

Terms used in this manual

Nominal value
means the basic nominal size of a part to be measured.
Standard value
means the quantitative requirement for dimension of a part, clearance between parts and performance.The values are rounded
off for the inspection job, and do not necessarily conform to the design values.
Limit value
means the limit value, which the measured value reaches, the part needs repair or replacement with a new one.

Abbreviations and Standards

BTDC : Before Top Dead Center
ATDC : After Top Dead Center
BBDC : Before Bottom Dead Center
ABDC : After Bottom Dead Center
TIR : Total Indicator Reading
API : American Petroleum Institute
ASTM : American Society for Testing and Materials
JIS : Japanese Industrial Standards
LLC : Long Life Coolant
MIL : Military Specifications and Standards (U.S.A.)
MSDS : Material Safety Data Sheet
SAE : Society of Automotive Engineers (U.S.A.)
P/N : Part Number

Unit of Measurement

Measurements are based on the International System of Units (SI), and their converted metric values are indicated in { } and
U.S. customary values are in [ ].For metric conversion, the following rates are used.
Pressure :1 MPa = 10.197 kgf/cm
Torque :1 N·m = 0.10197 kgf·m
Force :1 N = 0.10197 kgf
Output power :1 kW = 1.341 HP = 1.3596 PS
Pressure (mercury column) :1 kPa = 0.7 cmHg
Pressure (water column) :1 kPa = 10.197 cmH
Rotation speed:1 min -1 = 1 rpm
2
O (cmAq)
2
FOREWORD
III