GB961764A - Improvements in or relating to methods and devices for determining the mean radius of pores in microporous barriers - Google Patents

Improvements in or relating to methods and devices for determining the mean radius of pores in microporous barriers

Info

Publication number
GB961764A
GB961764A GB4443062A GB4443062A GB961764A GB 961764 A GB961764 A GB 961764A GB 4443062 A GB4443062 A GB 4443062A GB 4443062 A GB4443062 A GB 4443062A GB 961764 A GB961764 A GB 961764A
Authority
GB
United Kingdom
Prior art keywords
barrier
pores
mean radius
determining
relating
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
GB4443062A
Inventor
Robert Gremion
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Commissariat a lEnergie Atomique et aux Energies Alternatives CEA
Original Assignee
Commissariat a lEnergie Atomique CEA
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 Commissariat a lEnergie Atomique CEA filed Critical Commissariat a lEnergie Atomique CEA
Publication of GB961764A publication Critical patent/GB961764A/en
Expired legal-status Critical Current

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
    • G01N15/088—Investigating volume, surface area, size or distribution of pores; Porosimetry

Landscapes

  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Measuring Volume Flow (AREA)
  • Measuring Fluid Pressure (AREA)

Abstract

961,764. Determining pore radius. COMMISSARIAT A L'ENERGIE ATOMIQUE. Nov. 23, 1962 [Nov. 29, 1961], No. 44430/62. Heading G1S. The mean radius of pores in a microporous barrier 1 is determined by using the barrier 1 to divide a chamber 2 into two compartments 21, 22. Gas at constant pressure is supplied through a nozzle in which the gas flow is in the sonic region 3 to compartment 21 since the gas output through the barrier is constant the mean radius may be calculated from two measurements taken at close moments of both the pressure differential across the barrier (by gauge 6) and the mean pressure in the compartments. In an alternative embodiment the barrier is of tubular form and the closed compartment 22 can be vented to atmosphere when desired.
GB4443062A 1961-11-29 1962-11-23 Improvements in or relating to methods and devices for determining the mean radius of pores in microporous barriers Expired GB961764A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR880391A FR1314515A (en) 1961-11-29 1961-11-29 Improvements to methods and devices for determining the average pore radius of microporous barriers

Publications (1)

Publication Number Publication Date
GB961764A true GB961764A (en) 1964-06-24

Family

ID=8767677

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4443062A Expired GB961764A (en) 1961-11-29 1962-11-23 Improvements in or relating to methods and devices for determining the mean radius of pores in microporous barriers

Country Status (6)

Country Link
BE (1) BE625483A (en)
DE (1) DE1295241B (en)
FR (1) FR1314515A (en)
GB (1) GB961764A (en)
LU (1) LU42766A1 (en)
NL (1) NL285945A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2232491A (en) * 1989-05-17 1990-12-12 Westinghouse Electric Corp Method and apparatus for sensing obstructions in a nuclear fuel rod

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3306647C2 (en) * 1983-02-25 1985-12-19 Akzo Gmbh, 5600 Wuppertal Method for determining the blowing point and / or the pore distribution of membranes

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2392636A (en) * 1942-12-21 1946-01-08 Universal Atlas Cement Company Method and apparatus for determining total surface in granular beds
US2480665A (en) * 1945-02-05 1949-08-30 Chicago Pump Co Diffusion tube testing apparatus
US2737804A (en) * 1951-06-13 1956-03-13 Texas Co Relative permeability measurements

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2232491A (en) * 1989-05-17 1990-12-12 Westinghouse Electric Corp Method and apparatus for sensing obstructions in a nuclear fuel rod
GB2232491B (en) * 1989-05-17 1993-07-28 Westinghouse Electric Corp Method and apparatus for sensing obstructions in a nuclear fuel rod

Also Published As

Publication number Publication date
NL285945A (en)
BE625483A (en)
LU42766A1 (en) 1963-01-28
DE1295241B (en) 1969-05-14
FR1314515A (en) 1963-01-11

Similar Documents

Publication Publication Date Title
ES363672A1 (en) Process for effecting absorption or removal of gas from a liquid
GB1221625A (en) Gas purging fluid filter
CA2112910A1 (en) Fluid Sampling System
GB961642A (en) A continuous flow method and apparatus for determining adsorption isotherms of solidmaterials
GB1136184A (en) Improvements relating to pressure vessels
GB1489953A (en) Leak detector
GB1017597A (en) Improvements in or relating to pumps for use in testing gases
GB961764A (en) Improvements in or relating to methods and devices for determining the mean radius of pores in microporous barriers
GB1066004A (en) Method and apparatus for determining the amount of leakage from chambers
GB1136641A (en) Device for measuring the leak-tightness of filtering masks
GB1086297A (en) Method and apparatus for measuring the mean pore radius of a porous barrier
GB1170606A (en) Improvements in Liquid Level Measuring
GB1228649A (en)
JPS5234421A (en) Ventilating device for internal pressure
FR1305459A (en) Differential pressure control system especially for gas cells
GB900578A (en) Rapid response pressure instrument
GB1137461A (en) Method for freeze-drying liquids and plant for carrying the method into effect
GB999158A (en) Method and apparatus for carrying out ph measurements
GB1026622A (en) A method of determining the amount of reactive gas present in gaseous mixtures by means of gas-diffusion electrodes
AU416736B2 (en) Method and means for separating liquid and gas or gaseous fluid
GB1414475A (en) Methods and apparatus for measuring the density and or specific gravity of liquids
GB1105861A (en) Improvements in or relating to warning devices
SOURIRAJAN Separation of gases by preferential sorption and capillary flow through porous membranes
GB1328354A (en) Carbon dioxide filter units
GB869523A (en) An improved valve for controlling the decompression of an air or like chamber