
SCALES AND SIZES FOR PLOTTING FREQUENCY CHARACTERISTICS AND POLAR DIAGRAMS
出版:International Electrotechnical Committee

專家解讀視頻
Specifies standard proportions for the scales for plotting frequency characteristics and polar diagrams. Does not apply to audiograms.
NBN C 92 210 : 1981 AMD 1 1982 - Identical
NFC 97 030 : 1970 - Identical
UNE 20602 : 1978 - Identical
NEN 10263 : 1983 - Identical
DIN IEC 60263 : 1999 - Identical
NEN 10263 : 1983 - Identical
UNE 20602 : 1978 - Identical
NBN C 92 210 : 1981 AMD 1 1982 - Identical
NFC 97 030 : 1970 - Identical
DIN IEC 60263 : 1999 - Identical