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Hazardous Area Classification: Complete Guide to Hazardous Locations

Hazardous Area Classification

Hazardous area classification is the process of identifying locations where flammable gases, vapors, mists, or combustible dusts may be present in sufficient quantities to create an explosive atmosphere. Correct classification forms the foundation of explosion protection and determines the type of equipment that can be safely installed.

This page serves as the central hub for hazardous area classification resources published on ExProofHub. Whether you're an engineer, EPC contractor, procurement specialist, inspector, or student, you'll find practical guides covering hazardous zones, gas groups, temperature classes, Equipment Protection Levels (EPL), and other essential concepts based on the IEC 60079 standards.

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If you're new to hazardous area classification, we recommend reading these topics in the following order:

  1. What Is a Hazardous Area?
  2. Hazardous Area Classification
  3. Zone 0, Zone 1 & Zone 2 Explained
  4. Gas Groups Explained
  5. Temperature Classes (T1–T6)
  6. Equipment Protection Levels (EPL)

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Hazardous Area Fundamentals

  • Hazardous Area Classification
  • Hazardous Locations
  • Zone Classification

Explosion Characteristics

  • Gas Groups
  • Temperature Classes
  • Potential Ignition Sources

Equipment Selection

  • Equipment Protection Levels (EPL)
  • Equipment Categories
  • Equipment Markings

Explore the Complete Hazardous Area Library

Browse every hazardous area article published on ExProofHub.

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