what about flammable mists? how to handle?

IEC 60079-14 says:
"This standard does not apply to:
...
– electrical installations in areas where the hazard is due to flammable mist; ...."

1. Flammable mist is E.g aerosol.
2. Flammable Mist - Droplets of flammable liquid, dispersed in air, so as to form a hazardous atmosphere.

Even if it is not covered by the standard, same approach does apply.

Keep up good work and stay safe.

Arpad
veress@exprofessional.com
exprofessional.com