Is a class 'B' fire likely?
If the work environment makes a class 'B' fire likely, then OSHA rules state that a 10-B fire extinguisher must be no more than thirty (30) feet away from a worker.
What does "10-B" mean?
The term "10-B" means that a fire extinguisher is capable of putting out a class 'B' fire that is no more than ten (10) square feet in area at its base.
What if a class 'A' fire is more likely?
For places where a class 'A' fire is more likely, there has to be a fire extinguisher within 75 feet of workers.