US EPA Toxicity Classification (Systemic toxicity,eye irritation,skin irritation) ·Class:“Danger” -Fatal if ingested;corneal opacity;corrosive to skin Class II:Varning” May be fatal if ingested;reversible corneal opacity; severe skin irritation 。Class Ill:“Caution” -Harmful if ingested;no corneal opacity;moderate skin irritation 。Class IV:“Caution” May be harmful if ingested;no eye irritation; mild/no skin irritation US EPA Toxicity Classification (Systemic toxicity, eye irritation, skin irritation) • Class I: “Danger” – Fatal if ingested; corneal opacity; corrosive to skin • Class II: “Warning” – May be fatal if ingested; reversible corneal opacity; severe skin irritation • Class III: “Caution” – Harmful if ingested; no corneal opacity; moderate skin irritation • Class IV: “Caution” – May be harmful if ingested; no eye irritation; mild/no skin irritation