The invention discloses cleanout fluid applicable to cleaning of clinical laboratory instruments. The cleanout fluid is composed of, by
mass, 81-90% of water, 2-4% of a surface
active agent, 2-5% of an inorganic auxiliary agent, 1-2% of a solubilizing agent, 1-2% of
lubrication rust inhibitor, 0.5-1% of a sterilizing agent and 2-5% of a green chelating agent. The preparation method of the cleanout fluid includes the steps that firstly, pure water is added into a container, then the surface
active agent, the inorganic auxiliary agent, the solubilizing agent, the
lubrication rust inhibitor, the sterilizing agent and the green chelating agent are sequentially added, the mixture is mixed and stirred to be uniform, and the cleanout fluid is obtained. According to the cleanout fluid, due to the fact that the added
iminodisuccinic acid is a brand-new green chelating agent, the cleanout fluid has biodegradability and is safe and
environmentally friendly; due to the fact that a compounded mixed
surfactant system of the surface
active agent sodium dodecyl
benzene sulfonate, the inorganic auxiliary agent and the solubilizing agent is added, the cleanout fluid has good oil
stain removal capacity and is low in foam output and easy to clean; due to the fact that
rust prevention brightener
methyl silicone oil is added, the cleanout fluid achieves rust prevention, maintenance and brightening effects on the instruments.