HD 60027-3 : 200S1

Superseded

View Superseded by

LETTER SYMBOLS TO BE USED IN ELECTRICAL TECHNOLOGY - PART 3: LOGARITHMIC AND RELATED QUANTITIES, AND THEIR UNITS

Superseded date

01-01-2007

Published date

01-12-2013

Publisher

European Committee for Standards - Electrical

1 Scope
2 Normative references
3 Logarithmic quantities
4 Logarithmic ratios of field quantities and power
  quantities
  4.1 Logarithmic ratios of field quantities
  4.2 Logarithmic ratios of power quantities
  4.3 Levels
  4.4 Additional information on logarithmic ratios of
      field quantities and power quantities
5 Logarithmic information-theory quantities
6 Other logarithmic quantities
  6.1 General
  6.2 Logarithmic frequency interval
7 Names, symbols, and definitions

Applies to logarithmic quantities and units. Quantities that can be expressed as the logarithm of a dimensionless quantity, such as the ratio of two physical quantities of the same kind, can be regarded and treated in different ways. In many cases, differences do not affect practical treatment.

Committee	SR 25
DevelopmentNote	Supersedes HD 245.3 (02/2004) Supersedes UNE 21405-3. (02/2007)
DocumentType	Standard
PublisherName	European Committee for Standards - Electrical
Status	Superseded
SupersededBy	EN 60027-3 : 2007
Supersedes	HD 245.3 : 200S3

Standards	Relationship
DIN IEC 60027-3:2004-07	Identical
IEC 60027-3:2002	Identical
CEI 25-9 : 1ED 2005	Identical
PN HD 60027-3 : 2006	Identical
NEN HD 60027-3 : 2004	Identical
I.S. HD 60027-3:2004	Identical

HD 60027-2 : 200S1	LETTER SYMBOLS TO BE USED IN ELECTRICAL TECHNOLOGY - PART 2: TELECOMMUNICATIONS AND ELECTRONICS
ISO 31-11:1992	Quantities and units Part 11: Mathematical signs and symbols for use in the physical sciences and technology
ISO 31-0:1992	Quantities and units Part 0: General principles
ISO 31-2:1992	Quantities and units Part 2: Periodic and related phenomena
IEC 60027-2:2005	Letter symbols to be used in electrical technology - Part 2: Telecommunications and electronics
ISO/IEC 2382-16:1996	Information technology Vocabulary Part 16: Information theory