Dust Groups IIIA IIIB IIIC — Equipment Selection for Dust Zones

This article covers Dust Groups IIIA IIIB IIIC — Equipment Selection for Dust Zones. Dust groups IIIA, IIIB, and IIIC classify combustible dusts for Ex t equipment selection. This guide explains the dust group classification system and equipment requirements for each group.

Overview

This topic is covered in depth in EX Academy's training modules and tested in the CompEx written assessment. Understanding this concept is essential for correct equipment selection and inspection in hazardous areas.