What is the flashpoint range for nonpressurized products labeled as 'Caution Flammable'?

• A. -7°C - (+10°C)
• B. -54°C - (-10°C)
• C. -20°C - 0°C
• D. 0°C - 100°C

Answer: (A)

Flashpoint is the temperature at which a liquid’s vapors can ignite in air. In Alberta pesticide labeling, a product labeled Caution Flammable refers to a relatively low flashpoint but not the extremely low end. For nonpressurized containers, this designation applies when the flashpoint falls in the range of -7°C to 10°C. That means if a nonpressurized product’s flashpoint is within that window, it’s considered flammable enough to warrant caution rather than a higher-fire-risk label.

The other ranges would place the product in different fire-hazard categories or simply outside the defined Caution Flammable class, which is why they aren’t used for this label. So the -7°C to 10°C window is the standard for nonpressurized products labeled Caution Flammable.