首页>
外国专利>
analytical system for component of part in estern oil
analytical system for component of part in estern oil
展开▼
机译:东部石油中%成分的组成分析系统
展开▼
页面导航
摘要
著录项
相似文献
摘要
A method of testing a synthetic lubricating oil from a compressor cooling system for residual content of mineral oil after the refrigerant Freon 12 has been replaced by coolant 134 A is performed by pouring a measured quantity of the lubricating oil into the same measured quantity of pure methanol which is shaken and observed after some time. If appropriate, a small quantity of dye can be added. After some time, a dividing surface is formed between the oil and the oil dissolved in the methanol if the residual content of mineral oil in the synthetic oil is more than roughly 1%.
展开▼