IEC <br/><br/>
IEC: 60079-0-2000; Amendment 1; Electrical apparatus for explosive gas atmospheres part 0; General requirements 

 - Geneva  International Electrotechnical Commission  2000 
 - 3 
<br/><br/><label>ISBN: </label>2-8318-5210-2 
<br/><br/><label>Universal Decimal Class. No.: </label> /