HD 245.3 S2:1991

Letter symbols to be used in electrical technology - Part 3: Logarithmic quantities and units HD 245.3 S2:1991

General information

Current stage: 99.60 Withdrawal effective Apr 1, 2004

Originator: CENELEC

Owner: CLC/SR 25 Quantities and units

Type: Harmonization Document

Scope

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.

Life cycle

PREVIOUSLY

WITHDRAWN
HD 245.3 S1:1977

NOW

WITHDRAWN
HD 245.3 S2:1991
99.60 Withdrawal effective
Apr 1, 2004

REVISED BY

WITHDRAWN
HD 245.3 S3:2001

HD 245.3 S2:1991

Letter symbols to be used in electrical technology - Part 3: Logarithmic quantities and units HD 245.3 S2:1991

General information

Scope

Life cycle

PREVIOUSLY

NOW

REVISED BY

Relations

Adopted from IEC 60027-3:1989 IDENTICAL