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 1.33×10
3
Pa or more and one or more components having a vapor pressure at 20° C. less than 1.33×10
3
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.
一种无闪点的清洁剂或漂洗剂,由不含
氯的含
氟化合物组成,其在 20°C 时的蒸气压为 1.33×10
3
帕或更大,以及一种或多种成分在 20 摄氏度时的蒸气压小于 1.33×10 3
3
一种清洗方法,包括用清洗剂清洗和冲洗和/或利用沸腾清洗剂产生的蒸汽或其冷凝物进行蒸汽清洗;一种分离土壤的方法,包括将清洗槽中的清洗剂与土壤分离槽中清洗剂蒸汽的冷凝物接触,从而连续分离和去除清洗剂中所含的土壤;以及一种清洗装置。