Global Patent Index - EP 1015883 A1

EP 1015883 A1 2000-07-05 - METHOD OF TESTING HYDRAULIC FLUIDS BASED ON GLYCOLS AND GLYCOL-BORIC ACID ESTERS FOR PRECIPITATION TENDENCY

Title (en)

METHOD OF TESTING HYDRAULIC FLUIDS BASED ON GLYCOLS AND GLYCOL-BORIC ACID ESTERS FOR PRECIPITATION TENDENCY

Title (de)

TESTVERFAHREN FÜR HYDRAULISCHE FLÜSSIGKEITEN AUF DER BASIS VON GLYKOLEN UND GLYKOLBORSÄUREESTERN BEZÜGLICH NIEDERSCHLAGSNEIGUNG

Title (fr)

PROCEDE DE TEST DE LIQUIDES HYDRAULIQUES A BASE DE GLYCOLENE ET D'ESTERS DE GLYCOLE-ACIDE BORIQUE POUR DETERMINER LEUR TENDANCE A LA PRECIPITATION

Publication

EP 1015883 A1 (DE)

Application

EP 96943063 A

Priority

  • DE 19546856 A
  • EP 9605495 W

Abstract (en)

[origin: DE19546856C1] The water content of the hydraulic fluid under test is first adjusted to between 3 and 20 wt % relative to the water-containing fluid and the water-containing fluid is then mixed with at least an equal volume of tetrahydrofurane or monoethylene glycol dimethyl ether. The formation or non-formation of precipitate is then determined.

IPC 1-7 (main, further and additional classification)

G01N 33/28; G01N 25/08

IPC 8 full level (invention and additional information)

G01N 33/28 (2006.01)

CPC (invention and additional information)

G01N 33/2829 (2013.01); Y10T 436/203332 (2013.01); Y10T 436/25625 (2013.01)

Citation (search report)

See references of WO 9722877A1

Designated contracting state (EPC)

AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

EPO simple patent family

DE 19546856 C1 19970626; AU 1192197 A 19970714; EP 1015883 A1 20000705; US 5750407 A 19980512; WO 9722877 A1 19970626

INPADOC legal status


2001-07-18 [18W] WITHDRAWN

- Date of withdrawal: 20010522

2000-07-05 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 19980715

2000-07-05 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE