January 2021 MARIETTA, GA ~ If you process a flammable product or remove combustible vapors from a product in an oven, you will need a Class A oven that meets NFPA 86 requirements. Flammable volatiles that pose a potential explosion or fire hazard can originate from paints, powders, inks, and adhesives. Potential threats may also originate from finishing processes, such as dipped, coated, sprayed, and impregnated materials as well as from polymerization or other molecular rearrangements. Combustible materials include substrate material, wood, paper, plastic pallets, spacers and packaging materials.

The NFPA 86 Standard for Ovens and Furnaces
Understanding and complying with these National Fire Protection 86 standards is the best way to ensure long-term safe operation of ovens that are either fuel-fired or that process flammable solvents or combustible materials. For the latest safeguards required to minimize explosion hazards, get a copy of NFPA 86 Standard for Ovens and Furnaces, from the National Fire Protection Association (www.nfpa.org).

As there is a wide range of industrial ovens to cover all possible application requirements out there, the NFPA 86 standard has grown to take everything into account, from the suitability of the materials that are used to comprise an oven, to the safety and precautionary interlocks that will serve as fail-safes in case things go wrong. Depending on the oven type, there’s a dedicated section of the standard that covers the full spectrum of its specialized functionality, and its specific role.