燃やす
acid
background
badge
battery
beware
biological
caustic
caution
chemical
chemistry
corrosion
corrosive
danger
dangerous
death
design
electricity
environment
explosive
flammable
gas
harmful
hazard
healthy
hydrochloric
icon
illustration
industrial
irritant
label
liquid
notice
pictogram
poison
prohibited
protection
radiation
risk
safety
sign
signage
skull
sticker
substance
sulfuric
symbol
toxic
warning