T. D. Williamson, Inc - Glossary - Terms - Dictionary
Also called ATEX or 94/9/EC, this standard becomes EC law on July 1, 2003. ... form flammable mixtures with air or oxygen, there is a minimum concentration ...
ATEX Explosion Protection
that will ignite the relevant flammable mixture. The minimum energy lies between approximately 10. -5. J for. hydrogen, and several Joules for certain dusts ...