Which classification includes liquids with flashpoint above 73°F and boil below 100°F?

Which classification includes liquids with flashpoint above 73°F and boil below 100°F?

• A. IC
• B. IA
• C. IB
• D. II

Answer: (A)

This tests how flammable liquids are classified by flash point and boiling point according to NFPA 30. Liquids with a flash point at least 73°F and a boiling point below 100°F are classified as Class IC. The higher flash point means the liquid doesn’t ignite as easily at room temperature as those with lower flash points, while the boiling point being under 100°F means it can generate vapors that form ignitable mixtures at relatively low temperatures. Other classifications don’t match this exact combination: liquids with a flash point below 73°F fall into the IA or IB groups depending on the boiling point, and liquids with a flash point of 100°F or higher are Class II (and typically have higher boiling points).

This tests how flammable liquids are classified by flash point and boiling point according to NFPA 30. Liquids with a flash point at least 73°F and a boiling point below 100°F are classified as Class IC. The higher flash point means the liquid doesn’t ignite as easily at room temperature as those with lower flash points, while the boiling point being under 100°F means it can generate vapors that form ignitable mixtures at relatively low temperatures. Other classifications don’t match this exact combination: liquids with a flash point below 73°F fall into the IA or IB groups depending on the boiling point, and liquids with a flash point of 100°F or higher are Class II (and typically have higher boiling points).