
Electrical Apparatus For Use In Zone 20, Zone 21 And Zone 22 Hazardous (classified) Locations - Classification Of Zone 20, Zone 21 And Zone 22 Hazardous (classified) Locations
出版:International Society of Automation

專家解讀視頻
Concerns with the classification of areas where explosive dust atmospheres and combustible dust layers are present, in order to permit the proper selection of equipment for use in such areas.
Supersedes and renumbers ISA 12.10.05. (05/2006)