: It provides detailed methods for classifying areas where explosive gas, vapor, or mist may be present. Relationship to International Standards : It serves as a guide for the application of CEI EN 60079-10-1 (the international standard for explosive gas atmospheres). Technical Content
The primary purpose of CEI 31-35 is to offer engineers and safety professionals an analytical framework for identifying and sizing zones (Zone 0, Zone 1, and Zone 2) where flammable gases, vapours, or mists could pose an explosion risk.
, which was published on March 29, 2019, and supersedes previous editions such as CEI 31-35:2012. Intertek Inform Official Document Details Publisher: Comitato Elettrotecnico Italiano (CEI)
