Hazard class: Acute toxicity, oral (Category 3) and inhalation (Category 4). Toxic if swallowed (H301). Harmful if inhaled (H332). Do not eat, drink or smoke when using this product (P270). Avoid breathing dust or fumes (P261). Hazard class: Skin corrosion or irritation (Category 2). Causes skin irritation (H315). Hazard class: Sensitization, skin (Category 1). May cause an allergic skin reaction (H317). Hazard class: Carcinogenicity (Category 1). May cause cancer (H350). Obtain special instructions before use (P201). Do not handle until all safety precautions have been read and understood (P202). Use personal protective equipment as required (P281). Nickel compounds are known human carcinogens by inhalation of dust (IARC-1). Hazard class: Germ cell mutagenicity (Category 2). Suspected of causing genetic defects (H341).