A) Get rid of the flammable material.
B) What is reasonably practicable.
C) Replace the flammable with a non-flammable material.
D) Use a different work process.
A) An area where an explosive gas atmosphere is likely to occur in normal operation.
B) An area where explosive gas atmosphere is not likely to occur in normal operation and, if it occurs, will only exist for a short time.
C) An area where an explosive gas atmosphere is present continuously or for long periods.
D) An area where an explosive atmosphere occur for more than 1000h/yr .