JIS Z 8901 Class 7 Kanto Loam Technical Sheet

A standardized test powder with a particle density of 2.9–3.1 g/cm³. Its chemical composition includes 34–40% SiO₂, 26–32% Al₂O₃, 17–23% Fe₂O₃, 3–7% MgO, 2.5–4% TiO₂, and 3% CaO. Used for testing dust separators, filtration efficiency, and instrument calibration in compliance with JIS Z 8901 standards.