| 摘要 |
PURPOSE: A composition for a cleaner for a communication apparatus is provided to quickly remove impurities remaining in a communication apparatus and causing failure, and to have no smells. CONSTITUTION: A manufacturing method of a composition for a cleaner for a communication apparatus comprises a step mixing 1,1-dichloroethane, mineral spirits 66/3, and 1,1,1,2-tetrafluoroethane with a mixing ratio of 1:1:3. The manufacturing method is conducted at 20-50°C. The composition for a cleaner for a communication apparatus consists of 15-50 wt% of 1,1-dichloroethane, 55-65 wt% of mineral spirit 66/3, and 18-20 wt% of 1,1,1,2-tetrafluoro ethane furnace. |
