TRUE or FALSE: A temperature rise will not pose a hazard as long as the equipment temperature rating is not exceeded.

TRUE or FALSE: A temperature rise will not pose a hazard as long as the equipment temperature rating is not exceeded.

• A. True
• B. Only if pressure involved
• C. False
• D. Depends on material

Answer: (C)

Rising temperature signals heat generation that may outpace removal, creating hazards regardless of a device’s rated temperature. The equipment rating is a structural or material limit, not a guarantee that chemical hazards won’t occur below that temperature. Reactions often speed up as temperature increases, which can increase heat production and push the system toward thermal runaway if cooling or heat transfer isn’t sufficient. Even when the overall temperature stays below the rating, localized hot spots, changes in reaction kinetics, or decomposition and release of hazardous or flammable gases can occur, along with potential pressure buildup from vaporization. Because hazards depend on the chemical reactivity and heat balance, a temperature rise can be dangerous even without exceeding the equipment’s temperature rating.

Rising temperature signals heat generation that may outpace removal, creating hazards regardless of a device’s rated temperature. The equipment rating is a structural or material limit, not a guarantee that chemical hazards won’t occur below that temperature. Reactions often speed up as temperature increases, which can increase heat production and push the system toward thermal runaway if cooling or heat transfer isn’t sufficient. Even when the overall temperature stays below the rating, localized hot spots, changes in reaction kinetics, or decomposition and release of hazardous or flammable gases can occur, along with potential pressure buildup from vaporization. Because hazards depend on the chemical reactivity and heat balance, a temperature rise can be dangerous even without exceeding the equipment’s temperature rating.