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
Application
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
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