Manual of a simple mobile phone today

“Switch your device off in potentially explosive environments, such as near gasoline pumps. Sparks may cause an explosion or fire resulting in injury or death. Note restrictions in areas with fuel; chemical plants; or where blasting operations are in progress. Areas with a potentially explosive environment may not be clearly marked. These usually are areas where you are advised to switch your engine off, below deck on boats, chemical transfer or storage facilities, and where the air contains chemicals or particles. Check with the manufacturers of vehicles using liquefied petroleum gas (such as propane or butane) if this device can be safely used in their vicinity.”
It does not say it has to be Ex certified.

Few more thoughts:

1. Gasonline pump – tank station? Which means whenever I go tanking, and I do not switch off my mobile, I risk the payment of my insurance in case of an accident – they are surely aware of that point above.
2. …

Keep up good work!