WO2015036745A3 - Barrier testing - Google Patents

Barrier testing Download PDF

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Publication number
WO2015036745A3
WO2015036745A3 PCT/GB2014/052732 GB2014052732W WO2015036745A3 WO 2015036745 A3 WO2015036745 A3 WO 2015036745A3 GB 2014052732 W GB2014052732 W GB 2014052732W WO 2015036745 A3 WO2015036745 A3 WO 2015036745A3
Authority
WO
WIPO (PCT)
Prior art keywords
chamber
barrier
particles
test sample
mass spectrometer
Prior art date
Application number
PCT/GB2014/052732
Other languages
French (fr)
Other versions
WO2015036745A2 (en
Inventor
Robert Grant
Stephen SWANN
Original Assignee
Vg Scienta Limited
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Vg Scienta Limited filed Critical Vg Scienta Limited
Publication of WO2015036745A2 publication Critical patent/WO2015036745A2/en
Publication of WO2015036745A3 publication Critical patent/WO2015036745A3/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume, or surface-area of porous materials
    • G01N15/08—Investigating permeability, pore-volume, or surface area of porous materials
    • G01N15/082—Investigating permeability by forcing a fluid through a sample
    • G01N15/0826—Investigating permeability by forcing a fluid through a sample and measuring fluid flow rate, i.e. permeation rate or pressure change
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume, or surface-area of porous materials
    • G01N15/08—Investigating permeability, pore-volume, or surface area of porous materials
    • G01N2015/086—Investigating permeability, pore-volume, or surface area of porous materials of films, membranes or pellicules

Abstract

A method of measuring a permeation efficiency of a barrier (66) including providing said barrier (66) between a first (22) and a second chamber (44), placing a test sample (23) in said first chamber (22), providing a reference gas (46) to said second chamber (44), wherein said reference gas (46) is unreactive with respect to the test sample (23), wherein said reference gas (46) has a plurality of stable isotopes, maintaining an equilibrium quantity of particles of said at least one stable isotope in said second chamber (44) such that said quantity is within at least one order of magnitude of an expected number of particles of said test sample (23) present in said second chamber due to permeation through said barrier (66), obtaining a mass spectrometer (100) reading in relation to said at least one stable isotope, obtaining a mass spectrometer (100) reading in relation to said permeate, and correlating said mass spectrometer (100) readings and said maintained quantity of at least one stable isotope particles to obtain an absolute value for a quantity of said permeate, to establish a quantity of permeate passing through said barrier (66) per unit time.
PCT/GB2014/052732 2013-09-12 2014-09-10 Barrier testing WO2015036745A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB1316251.6A GB2518181B (en) 2013-09-12 2013-09-12 Barrier Testing
GB1316251.6 2013-09-12

Publications (2)

Publication Number Publication Date
WO2015036745A2 WO2015036745A2 (en) 2015-03-19
WO2015036745A3 true WO2015036745A3 (en) 2015-05-28

Family

ID=49552567

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2014/052732 WO2015036745A2 (en) 2013-09-12 2014-09-10 Barrier testing

Country Status (2)

Country Link
GB (1) GB2518181B (en)
WO (1) WO2015036745A2 (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5131261A (en) * 1988-08-26 1992-07-21 The Dow Chemical Company Permeation measurement device
JP2010190751A (en) * 2009-02-18 2010-09-02 Mitsubishi Chemicals Corp Gas permeability measuring device and gas permeability measuring method for film material

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6598463B2 (en) * 2001-05-02 2003-07-29 Du Pont Method for determining gas accumulation rates
TW200422604A (en) * 2002-12-25 2004-11-01 Matsushita Electric Ind Co Ltd Gas permeability measurement method and gas permeability measurement device
FR2897434B1 (en) * 2006-02-15 2014-07-11 Commissariat Energie Atomique METHOD AND DEVICE FOR PERMEATION MEASUREMENT

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5131261A (en) * 1988-08-26 1992-07-21 The Dow Chemical Company Permeation measurement device
JP2010190751A (en) * 2009-02-18 2010-09-02 Mitsubishi Chemicals Corp Gas permeability measuring device and gas permeability measuring method for film material

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PERES C ET AL: "STANDARD GAS ADDITION: A CALIBRATION METHOD FOR HANDLING TEMPORAL DRIFTS OF MASS SPECTROMETRY-BASED SENSORS", ANALYTICAL CHEMISTRY, AMERICAN CHEMICAL SOCIETY, US, vol. 74, no. 10, 15 May 2002 (2002-05-15), pages 2279 - 2283, XP001132702, ISSN: 0003-2700, DOI: 10.1021/AC0111558 *

Also Published As

Publication number Publication date
GB2518181A (en) 2015-03-18
GB201316251D0 (en) 2013-10-30
GB2518181B (en) 2016-06-01
WO2015036745A2 (en) 2015-03-19

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