HD 60027-1:2004

FOREWORD
SECTION 0: GENERAL
Scope
SECTION 1: RECOMMENDATIONS FOR PRINTING SYMBOLS AND
           NUMBERS
1.1 Symbols for quantities
1.2 Names and symbols for units
1.3 Numbers
1.4 Mathematical signs and symbols
1.5 Expressions for quantities
1.6 Complex representation of quantities
SECTION 2: GENERAL RECOMMENDATIONS FOR TIME-DEPENDENT
           QUANTITIES
2.1 Quantities that vary with time periodically
2.2 Quantities that vary with non-periodically
SECTION 3: SYMBOLS FOR QUANTITIES AND THEIR UNITS,
           SELECTED CONSTANTS AND SIGNS
3.1 Introduction to tables for quantities and their units
3.2 Introduction to tables for subscripts
3.3 Introduction to the table for mathematical signs and
    symbols
3.4 Introduction to the tables for time-dependent
    quantities
Annexes
A Greek alphabet
B Glossary of terms concerning letter symbols
  B.1 Terms concerning the structure of letter symbols
  B.2 Styles of letters
      B.2.1 Names of various marks added to a kernel (X)
      B.2.2 Illustrative examples
C Examples of time-dependent quantities
  C.1 Examples of periodic quantities
  C.2 Examples of transient quantities
  C.3 Example of random quantity
D Examples of use of source voltage and source current in
  equivalent circuits
E Special note concerning the rules for the names of
  quantities and units
F Systems of units and quantities
G Bibliography

Gives letter symbols for quantities and units used in electrical technology, and rules for their use and combination. Also specifies alphabets, subscripts, singularity functions, distributions and letter styles.