International Electrotechnical Commission <br/><br/>
IEC: 60422- 2005; Mineral insulating oils in electrical equipment-Supervision and maintenance guidance 

 - 3 
 - Geneva  IEC  2005 
 - 85 
<br/><br/><label>ISBN: </label>2-8318-8255-9 
<br/><br/><label>Universal Decimal Class. No.: </label> /