What is the flashpoint for combustible fluid?

What is the flashpoint for combustible fluid?

• A. 120 to 180 deg
• B. 141 to 200 deg
• C. 60 to 120 deg
• D. 200 to 300 deg

Answer: (B)

Flashpoint is the lowest temperature at which a liquid’s vapors can form an ignitable mixture with air and ignite in the presence of an ignition source. For combustible liquids, this temperature sits higher than for truly flammable liquids, so handling safety hinges on keeping them well above that point. In safety classifications used on ships, combustible liquids typically have flashpoints from about 140 to 200 degrees Fahrenheit. The range 141 to 200 degrees matches this standard band, which is why it’s the best choice. Remember, the exact number can shift with the test method (closed-cup tests usually yield higher numbers than open-cup tests), but the general idea remains: combustible fluids burn at higher flashpoints than flammable ones.

Flashpoint is the lowest temperature at which a liquid’s vapors can form an ignitable mixture with air and ignite in the presence of an ignition source. For combustible liquids, this temperature sits higher than for truly flammable liquids, so handling safety hinges on keeping them well above that point.

In safety classifications used on ships, combustible liquids typically have flashpoints from about 140 to 200 degrees Fahrenheit. The range 141 to 200 degrees matches this standard band, which is why it’s the best choice. Remember, the exact number can shift with the test method (closed-cup tests usually yield higher numbers than open-cup tests), but the general idea remains: combustible fluids burn at higher flashpoints than flammable ones.