| 摘要 |
<p>The invention relates to a method to analyze the condition of a functional fluid comprising: (1) obtaining a sample of the used fluid; (2) placing the sample of the fluid to a test medium; (3) reacting the fluid with an indicat or in the test medium; (4) analyzing visually the results of the reactor resulting in the determination of the condition of the fluid. Further an apparatus for analyzing functional fluids is disclosed in the form of a test medium consisting of an absorbent or nonabsorbent material which has been treated with a chemical indicator, marker substance or a developer or detect or reagent upon which a sample of the fluid to be tested is placed. The components in the treated test medium react with components in the test flui d providing a visual indication, for example a color change, to judge the condition, the presence of a marker substance or another parameter of the fluid. The functional fluid may be a lubricant, fuel or other functional flu id of innumerable sources, including internal combustion engines, turbines, transmissions, differentials, pumps, metalworking operations, cooling system s, etc, and be either organic solvent or aqueous based.</p> |
