The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 12, 1998
Filed:
Dec. 12, 1996
Applicant:
Inventor:
Wilfried Becker, Neuotting, DE;
Assignee:
Hoechst Aktiengesellschaft, Frankfurt, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N / ; G01N / ;
U.S. Cl.
CPC ...
436131 ; 436164 ; 436179 ; 436183 ;
Abstract
The method described comprises the steps of, firstly, a water content of from 3 to 20 wt %, based on the water-containing fluid, being set in the hydraulic fluid to be tested, followed by the water-containing fluid being mixed with at least 1 part by volume of tetrahydrofuran or monoethylene glycol dimethyl ether per part by volume of water-containing fluid, whereupon the formation or nonformation of a precipitate is ascertained.