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Test Dust

Powder Technology Inc. is the leading manufacturer and supplier of test dust for the filtration, automotive, heavy equipment industries, and military testing and operations. Arizona test dust is sold under a variety of names including Arizona Road Dust, Arizona Silica, AC Fine and AC Coarse Test Dusts, SAE Fine and Coarse Test Dusts, J726 Test Dusts, and most recently ISO Ultrafine, ISO Fine, ISO Medium and ISO Coarse Test Dusts. If you are interested in reading the history of Test Dust and PTI’s early involvement in establishing ISO standards with AC Spark Plug, a Division of General Motors, click on the following link.