acute
alert
attention
bio
blue
caution
chemical
chemistry
clp
coal
color
crossbones
danger
dangerous
dirty
environment
ghs
glove
hand
hazard
hazardous
health
industrial
industry
lab
laboratory
letters
poison
poisonous
pollution
radioactive
safety
sign
spill
substance
surreal
symbol
testtube
toxic
toxicology
toxins
warms
warning
waste
wood
word
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