HD 60027-3:2004被替代
Letter Symbols To Be Used In Electrical Technology - Part 3: Logarithmic And Related Quantities, And Their Units
出版：European Committee for Standards - Electrical
专家解读视频
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.
Supersedes HD 245.3 (02/2004) Supersedes UNE 21405-3. (02/2007)
PN HD 60027-3:2006 - Identical
NEN HD 60027-3:2004 - Identical
IEC 60027-3 Ed. 3.0 - Identical
DIN IEC 60027-3 (2004-07) - Identical
CEI 25-9 Ed. 1 (2005) - Identical
I.S. HD 60027-3S1 (Duplicate Record) - Identical
