Go/No Go Test or Explosibility Screening Test

The test is conducted to assess whether a dust/powder will form a flammable atmosphere, supporting flame propagation, when dispersed as a dust cloud in air. It is a purely qualitative test and categorises a material into one of two groups:

• Combustible (Group A) – Flammable or Explosible as a dust cloud
• Non-Combustible (Group B) – Non-Flammable or Explosible as a dust cloud

GO/NO GO testing is conducted in accordance to the following standards

1. British Standards BS EN ISO IEC 80079-20-2

2. American Society for Testing and Materials (ASTM) E1226