background
barrel
biohazard
blue
bung
chemical
chemistry
color
container
danger
diesel
distribution
drum
ecology
environment
environmental
factory
fluid
fuel
gallon
garbage
gasoline
hazardous
industrial
industry
label
lid
liquid
manufacturing
material
metal
nature
oil
outdoors
petrol
plant
plastic
poison
pollution
risk
rusty
safety
steel
storage
symbol
tank
toxic
warehouse
warning
white