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Combustible dust explosion hazards exist in a variety of industries, including food (e.g., candy, starch, flour, feed), plastics, wood, rubber, furniture, textiles, pesticides, pharmaceuticals, dyes, coal, metals (e.g., aluminum, chromium, iron, magnesium, and zinc), and fossil-fuel power generation.
PHA is now finding its way into combustible-dust hazard management. Several National Fire Protection Association (NFPA) standards on combustible dust contain provisions for conducting PHAs. The newest, NFPA 652: Standard on the Fundamentals of Combustible Dust (3), became effective on Sept. 7, 2015.