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Combustible Dust & Static Electricity Q&A

  •   Where can I find a comprehensive list for Kst Pmax values for food ingredient powders?

    Answered September 24th, 2015 by Expert: Dr. Vahid Ebadat

    NFPA 61 (Standard for the prevention of Fires and Dust Explosions in Agricultural and Food Processing Facilities) lists the explosion properties of some agricultural products so do some other NFPA standards/guidelines such as NFPA 68 (Guide for Venting of Deflagrations). However, please note that published data on the combustibility/explosibility of dusts should not be used for the actual assessment and design of explosion prevention and protection measures and systems. This is because factors such as particle size, moisture content, age, exposure to contaminants, test method, etc. can all affect these properties. It is recommended that a qualified laboratory determine the relevant properties experimentally, using representative samples.

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