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Class of Liquid

NFPA ® 30, NFPA ® 1, and IFC Flammable/Combustible Liquid Classification by Flash Point. Class of Liquid. Definition. Class III B. 200°F. (93°C). Class III A. Combustible. 140°F. ( 60°C ). Class II. 100°F. (37.8°C). Class IC. Flammable. 73°F. (22°C). Class 1B

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Class of Liquid

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  1. NFPA® 30, NFPA ® 1, and IFC Flammable/Combustible Liquid Classification by Flash Point Class of Liquid Definition Class III B 200°F (93°C) Class III A Combustible 140°F (60°C) Class II 100°F (37.8°C) Class IC Flammable 73°F (22°C) Class 1B Boiling Point at or above 100°F (37.8°C) Class 1A Boiling Point less than 100°F (37.8°C) Flash Point Temperature

  2. New OSHA - GHS Harmonization Flammable Liquid Classification by Flash Point Notes 1) When a Category 4 flammable liquid is heated for use to within 30 °F (16.7 °C) of its flashpoint, it shall be handled in accordance with the requirements for a Category 3 liquid with a flashpoint at or above 100 °F (37.8 °C). 2) When a Category 3 liquid with a flashpoint at or above 100 °F (37.8 °C) is heated for use to within 30 °F (16.7 °C) of its flashpoint, it shall be handled in accordance with the requirements for a Category 3 liquid with a flashpoint below 100 °F (37.8 °C). 3) When liquid with a flashpoint greater than 199.4 °F (93 °C) is heated for use to within 30 °F (16.7 °C) of its flashpoint, it shall be handled in accordance with the requirements for a Category 4 flammable liquid. Class of Liquid Definition 199.4°F (93°C) Category 4 140°F (60°C) Category 3 Flammable 100°F (37.8°C) 73°F (23°C) Category 2 Boiling Point above 95°F (35° C) Category 1 Boiling Point at or less than 95°F (35°C) Flash Point Temperature

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