Manage Gas & Dust Explosion Risks to International Standards
Hazardous Area Classification (HAC)
ManageGas&DustExplosionRiskstoInternationalStandards
In today's high-risk industrial environments, organisations handling flammable gases, vapours, liquids, or combustible dusts must demonstrate a strong commitment to explosion prevention. Hazardous Area Classification (HAC) based on international standards (IEC 60079, ATEX, NFPA, NEC) helps businesses identify explosion risks, select appropriate equipment, comply with legal requirements, and protect people, assets, and operations.
Sicher provides specialised consulting, engineering, and digital solutions that enable companies across Thailand and the Asia-Pacific region to develop, implement, and maintain robust hazardous area classifications for both gas and dust atmospheres with confidence and accuracy.
Core Consulting Activities for Hazardous Area Classification
01
Site survey & data collection – Review processes, materials, ventilation, and ignition sources in gas and dust handling areas.
02
Gas hazardous area classification – Classify Zones 0, 1, and 2 in accordance with IEC 60079-10-1 / ATEX / NEC for flammable gases, vapours, and mists.
03
Dust hazardous area classification – Classify Zones 20, 21, and 22 in accordance with IEC 60079-10-2 / NFPA / ATEX for combustible dusts and powders.
04
Zone definition & classification drawings – Prepare clear zone maps, layouts, and documentation for engineering, maintenance, and audits.
05
Equipment selection & verification (Ex) – Recommend or verify explosion-protected (Ex) electrical and mechanical equipment suitability for each zone.
06
Ventilation & ignition risk assessment – Evaluate ventilation effectiveness, potential release sources, and ignition risks to reduce the probability of explosion.