000 00359nam a2200073 4500
080 _a
_b
245 _aBS-00089 - Part 5 - 1990; Direct Acting Indicating Analogue Electrical Measuring Instruments and their Accessories Part 5 Specification for Special Requirements for Phase Meters, Power Factor Meters and Synchroscopes
700 _aBritish Standards Institution
260 _aLondon
_bBSI
_c1990
300 _a12p
999 _c36068
_d36068