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AS 1046.3-1991

Withdrawn
Withdrawn

A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.

Letter symbols for use in electrotechnology - Logarithmic quantities and units
Available format(s)

Hardcopy , PDF 1 User , PDF 3 Users , PDF 5 Users , PDF 9 Users

Withdrawn date

06-30-2017

Language(s)

English

Published date

01-01-1991

Preview

Defines logarithmic quantities and units. The logarithmic quantities dealt with are transmission path quantities, levels, frequency intervals and decision content. This Standard is identical with and has been reproduced from IEC 27-3:1989.

This standard 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 in principle do not affect the practical treatment.Logarithmic quantities are here treated in a way that makes it possible, for example, to express the attenuation of a certain linear two-terminal network by the equally valid expressions A = 4,6 nepers = 4,0 bels = 40 decibels, where 4,6, 4,0 and 40 are regarded as numerical values and "neper", "bel" and "decibel" as units with specified relationships.The fact that this standard is based on certain principles and assumptions implies no opinion whether any other principle or assumption is "right" or "wrong". This standard relates to the handling of logarithmic quantities, without regard to their interpretation or specific application.The fact that only some logarithmic quantities are particularly dealt with here does not imply that other logarithmic quantities do not exist. It is possible that other logarithmic quantities will be particularly dealt with in a later edition or separately.

Committee
TE-013
DocumentType
Standard
ISBN
0 7262 6969 7
Pages
9
PublisherName
Standards Australia
Status
Withdrawn
Supersedes

Standards Relationship
IEC 60027-3:1989 Identical
IEC 60027-3:2002 Identical

First published as AS 1046.3-1991.

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