Dust Combustibility Testing (Group A/B)

The Dust Combustibility (Group A/B) test is conducted to assess whether dust or powder will form a flammable atmosphere or support flame propagation when dispersed as a dust cloud in the open air. This test categorises dust or powder into one of two groups:

Combustible (Group A) – Flammable or explosive
Non-Combustible (Group B) – Non-flammable or non-explosive