Global Patent Index - EP 1000339 A1

EP 1000339 A1 20000517 - METHOD FOR TESTING THE QUALITY OF MEMBRANES

Title (en)

METHOD FOR TESTING THE QUALITY OF MEMBRANES

Title (de)

VERFAHREN ZUR QUALITÄTSÜBERPRÜFUNG VON MEMBRANEN

Title (fr)

PROCEDE DE CONTROLE QUALITE DE MEMBRANES

Publication

EP 1000339 A1 20000517 (DE)

Application

EP 98938695 A 19980721

Priority

  • DE 19732775 A 19970730
  • EP 9804565 W 19980721

Abstract (en)

[origin: DE19732775A1] The invention relates to a method for testing the quality of membranes. According to the invention, an aqueous test solution containing polyacrylic acid (s) and/or salts thereof and/or derivatives thereof is filtered through the membrane before and after said membrane has been treated with the solution to be filtered and the water rate and retention rate are determined.

IPC 1-7

G01N 15/08

IPC 8 full level

B01D 65/10 (2006.01); G01N 15/08 (2006.01)

CPC (source: EP US)

B01D 65/10 (2013.01 - EP US); B01D 65/109 (2022.08 - EP US); G01N 15/0826 (2013.01 - EP); G01N 2015/086 (2013.01 - EP)

Designated contracting state (EPC)

DK NL

DOCDB simple family (publication)

DE 19732775 A1 19990204; AU 8732298 A 19990222; EP 1000339 A1 20000517; WO 9906817 A1 19990211

DOCDB simple family (application)

DE 19732775 A 19970730; AU 8732298 A 19980721; EP 9804565 W 19980721; EP 98938695 A 19980721