CLEANING AGENT, CLEANING METHOD AND CLEANING APPARATUS

摘要

A cleaning agent or a rinsing agent having no flash point which comprises a chlorine-free fluorine-containing compound having a vapor pressure at 20°C of 1.33 X 103 Pa or more and one or more components having a vapor pressure at 20°C less than 1.33 X 103 Pa and optionally an additive such as an antioxidant; a method for cleaning which comprises cleaning with the cleaning agent and rinsing and/or vapor cleaning utilizing a vapor being generated by boiling the cleaning agent or a condensate thereof; a method for separating a soil which comprises contacting a cleaning agent in a cleaning tank with a condensate of the vapor of the cleaning agent in a soil separating tank, to thereby continuously separate and remove a soil contained in the cleaning agent; and a cleaning apparatus.