IEEE 268-1992

1 Scope
2 SI units and symbols
2.1 Classes of units
2.2 Base units
2.3 Supplementary units
2.4 Derived units
2.5 SI prefixes
2.5.1 Units of mass
3 Application of SI
3.1 General
3.2 Application of SI prefixes
3.2.1 General
3.2.2 Selection
3.2.3 Prefixes in compound units
3.2.4 Compound prefixes
3.2.5 Powers of units
3.2.6 Calculations
3.3 Other units
3.3.1 Units from different systems
3.3.2 Units in use with SI
3.3.3 Units in use with SI temporarily
3.3.4 Units and names to be abandoned
3.4 Other recommendations concerning units
3.4.1 Mass, force, and weight
3.4.2 Temperature
3.4.3 Nominal dimensions
3.4.4 Torque and work
3.4.5 Impact
3.4.6 Pressure and vacuum
3.4.7 Quantities expressed as pure numbers
3.5 Style and usage
3.5.1 Rules for writing unit symbols
3.5.2 Rules for writing names
3.5.3 Units formed by multiplication and division
3.5.4 Numbers
3.5.5 Attachment to unit symbols
3.5.6 Pronunciation
4 Bibliography
Appendices
A Tables of conversion factors
A1 General
A2 Notation
A3 Use
A4 Organization
B Terminology
C Rules for conversion and rounding
C1 General
C2 Significant digits
C3 Operations on data
C4 Accuracy and rounding
C5 Rounding values
C6 Conversion of linear dimensions of
       interchangeable parts
C7 Other units
D Development of the International System of Units
       (le Systeme Internationale d'Unites)
D1 History
D2 Advantages of SI
D3 Selection of units
D4 Definitions of SI base units
D5 Definitions of SI supplementary units
D6 Definitions of SI derived units with special
       names
E The BIPM and the meter convention
Tables
1 Base SI units
2 Supplementary SI units
3 Derived SI units with special names and symbols
4 Some common derived SI units without special
       names or symbols
5 SI prefixes
6 Units in use with SI
7 Units in use with SI temporarily
8 Recommended pronunciation of prefixes
9 Recommended pronunciation of selected units
Figure
1 Illustration of difference between mass (unit:
       kilogram) and force (unit: Newton)
Appendix Tables
A1 Classified list of units - space and time
A2 Classified list of units - mechanics
A3 Classified list of units - heat
A4 Classified list of units - electricity and
       magnetism
A5 Classified list of units - light
A6 Classified list of units - radiology
A7 Alphabetical list of units
C1 Rounding tolerance - inches to millimeters
C2 Conversion of temperature tolerance requirements

Guides application of modernized metric system.