JIS Z 8901 Class 9 Talc Technical Sheet

JIS Z 8901 Class 9 Talc: A standardized test powder with a particle density of 2.7–2.9 g/cm³, containing 60–63% SiO₂, 0–3% Fe₂O₃, 0–3% Al₂O₃, 0–2% CaO, and 30–34% MgO. Used for dust separator tests, filtration efficiency, and instrument calibration, in compliance with JIS Z 8901 standards.