To control dust explosions, consider these standards and practices:

1. Design and Maintenance of Systems: Follow American National Standards Z33.1-1961 and Z12.2-1962 (R1969) for blower, collecting, and exhaust systems to manage dust, stock, and vapor removal [1]. Ensure that equipment construction, including exhaust systems and electrical wiring, complies with ANSI Z33.1-1961 (NFPA 91-1961) 2, 6.
2. Dust Collection Systems: Equip mills with dust-creating machines with a collecting system that can continuously or automatically remove refuse from machinery and work areas [1]. Each woodworking machine should have an exhaust or conveyor system to remove the maximum amount of refuse [1].
3. Explosion Prevention: Use explosion venting areas or loose panels in abrasive blasting enclosures, ducts, and dust collectors, located away from occupied areas, to relieve pressure in case of an explosion, referring to NFPA 68-1954 2, 4, 6.
4. Preventive Maintenance: Implement a preventive maintenance program that includes regular inspections and lubrication of equipment like bearings, belts, and milling machinery to prevent them from becoming ignition sources [2]. Prioritize maintenance of safety control equipment [2].
5. Housekeeping Program: Develop a written housekeeping program to reduce dust accumulations on surfaces, specifying cleaning schedules and control measures 14, 17. Immediately remove dust accumulations exceeding 1/8 inch in priority areas or demonstrate equivalent protection [3].
6. Dust Control Methods: Use methods such as pneumatic dust collection systems, enclosed conveying systems with pressure control, and edible oil sprays to control dust emissions 8, 17. Ensure that dust filter collectors have monitoring devices to indicate pressure drop [4].
7. Equipment and Machinery: Use only approved power-operated industrial trucks designated as EX in areas where combustible dust may be in suspension [5]. Ensure newly purchased belts and lagging are conductive, with a surface electrical resistance not exceeding 300 megohms [6].
8. Ventilation: Ensure sufficient exhaust ventilation to maintain the atmosphere below the lowest explosive limits for the materials being applied [7]. Blast-cleaning enclosures should be exhaust ventilated to maintain a continuous inward flow of air at all openings 6, 19.
9. Electrical Safety: In potentially explosive atmospheres, electrical equipment should be suitable for the hazard, such as using equipment approved for Class II, Division 1 locations 2, 6.
10. Airborne Chemical Agents: Ensure that the concentration of airborne chemical agents in the workplace is less than 50% of the lower explosive limit; if ignition sources are present, reduce this to 10% [8].

By adhering to these standards and practices, facilities can significantly reduce the risk of dust explosions.