| 摘要 |
PURPOSE:To remove an asbestos dust adherent to a rotor without permitting it to fly out by incorporating methylene chloride and a specific hydrocarbon. CONSTITUTION:30-80 pts.vol. methylene chloride is mixed with 70-20 pts.vol. at least one hydrocarbon selected between n-hexane and cyclohexane. The mixture is packed into an aerosol can along with liquefied petroleum gas, dimethyl ether, etc., thereby giving a detergent. A rotor is sprayed with the detergent to clean off the asbestos dust adherent to the rotor. |
