BS 5457:1977被替代
Specification For Laboratory D.c. Resistors
出版：British Standards Institution
專家解讀視頻
Covers resistors intended for use as laboratory d.c. resistors comprising single or multiple resistors of accuracy Classes 0.0005...0.2 (5ppM...2000ppM) and single or multi-decade resistors of accuracy Classes 0.0005...5 (5ppM...50 000ppM). Excludes resistors used solely as permanent mounted circuit components; resistors used on alternating current or on pulsed currents; and series resistors and shunts which are treated as accessories of electrical measuring instruments in I E C publications. Includes sections on classification, limits andconditions for the determination of intrinsic errors. Permissible variations, additional electrical and mechanical requirements, and markings and symbols.AMD 10233 RENUMBERS STD
? British Standards Institution 2013
Renumbered and superseded by BS EN 60477
Supersedes 73/29217 DC and 96/203883 DC
(11/2005)
IEC 60477 Ed. 1.0 - Similar
