In the used oil specifications, which parameter is tested to assess flammability?

In the used oil specifications, which parameter is tested to assess flammability?

• A. Flash Point
• B. Pour Point
• C. Viscosity
• D. Boiling Point

Answer: (A)

Flammability is determined by the temperature at which oil vapors can ignite. The test focuses on the flash point, defined as the lowest temperature at which vapors above the liquid momentarily ignite in air when a flame is introduced. In used oil, aging and contaminants can lower this temperature, increasing fire risk during handling or storage. So the flash point is the best measure of flammability among the options. Pour point, viscosity, and boiling point describe other properties (flow at low temperature, thickness, and the temperature at which the liquid boils, respectively) and do not directly indicate ignition risk like the flash point does.

Flammability is determined by the temperature at which oil vapors can ignite. The test focuses on the flash point, defined as the lowest temperature at which vapors above the liquid momentarily ignite in air when a flame is introduced. In used oil, aging and contaminants can lower this temperature, increasing fire risk during handling or storage. So the flash point is the best measure of flammability among the options. Pour point, viscosity, and boiling point describe other properties (flow at low temperature, thickness, and the temperature at which the liquid boils, respectively) and do not directly indicate ignition risk like the flash point does.