Based on Highest Rated Chemical Involved General PPE Coverage of legs and CSL 1 PPE plus eye CSL 2 PPE plus lab CSL 3 plus flame resistant lab feet protection coat coat Requirements (eye and skin exposure) (protection requirements to enter the room) Lab Room Primarily Based on Physical Ratings Specific PPE No gloves Activity-specific Activity-specific Activity-specific gloves, such as gloves, such as thin gloves, such as thin flame resistant if using Requirements nitrile, vinyl, or nitrile, vinyl, or pyrophoric liquids, neoprene if (hand and latex disposable latex disposable using large quantities respiratory gloves would be gloves would be protection) typical acceptable for an (protection incidental small requirements to quantity splash. conduct work) Neoprene or butyl Process Specific rubber may be needed for immersion in solvents, or similar Primarily Based on situation Physical Ratings General None or low ‡ Moderate ‡ High ventilation, Ventilation designed specifically ventilation ventilation, as as defined by for this operation Ventilation specifications defined by laboratory Requirements laboratory ventilation (facility support ventilation management plan requirements) management plan Lab Room Primarily Based on Health Rating Other Engineering Local exhaust Fume hood, local Fume hood, local exhaust ventilation exhaust ventilation ventilation (snorkel), glove/dry Controls (snorkel) (snorkel), limited box, enclosed reactor glove box use Based on Exposure Risk Emergency Institutional-specific response response response response protocol; specific pre-planning Response Protocol protocol protocol; people protocol; may have required (expectations for with knowledge of advanced lab response to potential incident have response protocol hazmat responsibility to to make the emergencies) provide information situation safe while Lab Room to responders evacuating Primarily Based on Physical and Mechanical Ratings
Based on Highest Rated Chemical Involved General PPE Requirements (eye and skin exposure) (protection requirements to enter the room) Coverage of legs and feet CSL 1 PPE plus eye protection CSL 2 PPE plus lab coat CSL 3 plus flame resistant lab coat Lab Room Primarily Based on Physical Ratings Specific PPE Requirements (hand and respiratory protection) (protection requirements to conduct work) No gloves Activity-specific gloves, such as thin nitrile, vinyl, or latex disposable gloves would be typical Activity-specific gloves, such as thin nitrile, vinyl, or latex disposable gloves would be acceptable for an incidental small quantity splash. Neoprene or butyl rubber may be needed for immersion in solvents, or similar situation Activity-specific gloves, such as flame resistant if using pyrophoric liquids, neoprene if using large quantities Process Specific Primarily Based on Physical Ratings General Ventilation Requirements (facility support requirements) None or low ventilation specifications ‡ Moderate ventilation, as defined by laboratory ventilation management plan ‡ High ventilation, as defined by laboratory ventilation management plan Ventilation designed specifically for this operation Lab Room Primarily Based on Health Rating Other Engineering Controls Local exhaust ventilation (snorkel) Fume hood, local exhaust ventilation (snorkel), limited glove box use Fume hood, local exhaust ventilation (snorkel), glove/dry box, enclosed reactor Based on Exposure Risk Emergency Response Protocol (expectations for response to potential hazmat emergencies) response protocol response protocol; people with knowledge of incident have responsibility to provide information to responders response protocol; may have advanced lab response protocol to make the situation safe while evacuating Institutional-specific response protocol; specific pre-planning required Lab Room Primarily Based on Physical and Mechanical Ratings
table-8-1-approach-establishing-chemical-safety-levels.docx