Rendering harmful dusts, e.g. quartz dust, harmless - by biologically inert casing, e.g. acrylic] casing

摘要

Particles of dusts which are harmful to health, e.g. dusts contg. quartz, are given a biologically inert casing, e.g. on an acrylic basis. ADVANTAGE - Damage to human lungs caused by infiltration of the dusts is avoided.