GB2001444B - Instrument for measuring gas permeability - Google Patents
Instrument for measuring gas permeabilityInfo
- Publication number
- GB2001444B GB2001444B GB7827980A GB7827980A GB2001444B GB 2001444 B GB2001444 B GB 2001444B GB 7827980 A GB7827980 A GB 7827980A GB 7827980 A GB7827980 A GB 7827980A GB 2001444 B GB2001444 B GB 2001444B
- Authority
- GB
- United Kingdom
- Prior art keywords
- instrument
- gas permeability
- measuring gas
- measuring
- permeability
- 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
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
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24C—MACHINES FOR MAKING CIGARS OR CIGARETTES
- A24C5/00—Making cigarettes; Making tipping materials for, or attaching filters or mouthpieces to, cigars or cigarettes
- A24C5/005—Treatment of cigarette paper
- A24C5/007—Perforating
Landscapes
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- Dispersion Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Fluid Mechanics (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Measuring Volume Flow (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB7827980A GB2001444B (en) | 1977-07-01 | 1978-06-27 | Instrument for measuring gas permeability |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2762977 | 1977-07-01 | ||
| GB7827980A GB2001444B (en) | 1977-07-01 | 1978-06-27 | Instrument for measuring gas permeability |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB2001444A GB2001444A (en) | 1979-01-31 |
| GB2001444B true GB2001444B (en) | 1982-04-15 |
Family
ID=26258913
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB7827980A Expired GB2001444B (en) | 1977-07-01 | 1978-06-27 | Instrument for measuring gas permeability |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB2001444B (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4198854A (en) * | 1978-12-07 | 1980-04-22 | Philip Morris Incorporated | Method and apparatus for measuring porosity |
| US4471649A (en) * | 1981-02-20 | 1984-09-18 | British-American Tobacco Company Limited | Permeability monitoring of sheet materials |
| US4462248A (en) * | 1981-03-18 | 1984-07-31 | British-American Tobacco Company Limited | Automatic pressure/flow device |
| EP0096311B1 (en) * | 1982-06-08 | 1989-05-17 | Thomas Josef Heimbach GmbH & Co. | Inspection device for the measurement of the permeability to air of textile material webs |
| GB2140163A (en) * | 1983-05-17 | 1984-11-21 | Coulter Electronics | Porosimeter and methods of assessing porosity |
| GB2238134B (en) * | 1989-11-13 | 1993-06-23 | Secr Defence | Fabric tester |
| CN111474101A (en) * | 2020-05-18 | 2020-07-31 | 万国纸业太阳白卡纸有限公司 | Paper penetration rate measuring device and method |
| CN112369654B (en) * | 2020-10-29 | 2022-01-25 | 中国烟草总公司郑州烟草研究院 | Differential pressure compensation elimination method of cigarette ventilation rate detection device |
-
1978
- 1978-06-27 GB GB7827980A patent/GB2001444B/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB2001444A (en) | 1979-01-31 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PCNP | Patent ceased through non-payment of renewal fee |