Arizona Test Dust

Arizona test dust is a standardized particulate blend used to evaluate filtration efficiency, capacity, and durability under controlled conditions. Developed for air-filter testing (ISO 12103-A), it mimics natural dust compositions with defined particle-size distributions from ultrafine to coarse. In liquid filtration R&D, it serves as a reproducible surrogate for solids loading tests and helps compare media or evaluate blinding resistance. Proper storage and dispersion are crucial to maintain consistency. Using standard dusts enables objective benchmarking and traceable quality assurance across filter generations and suppliers.