The Sensidyne CDEM-1000 Coal Dust Explosibility Meter is a portable, handheld, easy-to-use instrument, designed to provide a direct indication of the potential explosibility of a coal and rock dust mixture in accordance with Title 30, Code of Federal Regulations, Part 75.403. It meets the needs of mining operators, safety inspectors and regulators following coal dust sample collection guidelines. Sensidyne LP, www.sensidyne.com, (800) 451-9444. Circle 277 coal