This document is the Preliminary First Draft of the proposed 2015 edition of NFPA 652. The standard will provide the basic principles of and requirements for identifying and managing the fire and explosion hazards of combustible dusts and particulate solids. The standard will provide the user with general requirements and direct the user to the appropriate industry or commodity-specific NFPA standard for additional requirements. It establishes the basic principles and requirements that shall be applied to all facilities where combustible dusts or particulate solids are present. Where an industry or commodity-specific NFPA standard exists, its requirements shall be applied in addition to those in this standard. CLICK HERE to see the first draft.