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This is an overview of the dust testing laboratory capabilities at Camfil Air Pollution Control in Jonesboro, AR. The discussion of dust sample analysis includes topics such as proper dust sampling and physical properties of the dust that are evaluated. What's the difference between "adhesion" and "cohesion?" The lab publishes a report of test results, recommendations for collector and filter media types for dry dusts including washable media cartridges for potentially sticky dusts. A look at the lab tools includes the microscope, ASHRAE 52.2 Test Duct, Pycnometer and special abrasion testing apparatus. Dust testing prior to equipment selection is important to ensure a successful operation.