alarm
alert
assistance
background
burned
burning
caution
chemical
container
cut
czech
danger
emergency
equipment
extinguish
extinguisher
extinguishing
fighting
fire
firefighter
flame
flammable
foam
fuel
gasoline
gray
handle
hazard
heat
help
hose
indigestion
industrial
industry
isolated
label
metal
nozzle
object
office
pipeline
precaution
pressure
prevention
protect
protection
pump
red
rescue
rubber
safety
security
sign
sparks
steel
suppression
system
tool
urgency
wall
warning
water
white