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Title:
MEMBRANE MOISTURE MEASUREMENT
Document Type and Number:
WIPO Patent Application WO2001073414
Kind Code:
A3
Abstract:
A method of measuring the concentration of water in an ion exchange membrane cmprising: (i) measuring the absorbance of electromagnetic radiation transmitted through the membrane, said electromagnetic radiation comprising at least one frequency of an intensity such that it is at least partially, but not entirely, absorbed by water molecules within the membrane; (ii) measuring the thickness of the membrane; and (iii) using the values obtained in (i) and (ii) above to calculate the concentration of water molecules in the membrane.

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JP2000210572CATION EXCHANGE RESIN CONTAINING POLYPHOSPHORIC ACID GROUP AND ITS PRODUCTION
Inventors:
MORRISSEY PATRICK JOHN (GB)
Application Number:
PCT/GB2001/001242
Publication Date:
October 17, 2002
Filing Date:
March 21, 2001
Export Citation:
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Assignee:
REGENESYS TECH LTD (GB)
MORRISSEY PATRICK JOHN (GB)
International Classes:
B01J39/20; G01N21/35; B01J47/00; G01N22/04; (IPC1-7): G01N22/04
Foreign References:
US4674325A1987-06-23
JPH112616A1999-01-06
JPH02210771A1990-08-22
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