acid
barrel
black
chemical
chemistry
container
corrosive
danger
dirty
drum
environment
equipment
factory
gallon
garbage
gasoline
hazard
hazardous
industrial
industry
laboratory
leak
liquid
management
manufacturing
material
metal
oil
old
plastic
poison
pollution
recycled
recycling
risk
safety
spill
stain
steel
stock
storage
substance
tank
toxic
valve
warehouse
waste
water
work