International Electrotechnical Commission <br/><br/>
IEC: 1241-2-2-1993; Electrical apparatus for use in the presence of combustible dust part 2; Test methods sec.2; Method for determining the electrical resistivity of dust in layers 

 - 1 
 - Geneva  IEC  1993 
 - 17 
<br/><br/><label>Universal Decimal Class. No.: </label> /