000 00297nam a2200073 4500
080 _a
_b
245 _aBS-0903 (Part C4) - 1957; Methods of testing vulcanized rubber Part C4 determination of electric strength of insulating soft vulcanized rubber and ebonite
700 _aBritish Standards Institution
260 _aLondon
_bBSI
_c1957
300 _a12p
999 _c24781
_d24781