JPH0247548U - - Google Patents
Info
- Publication number
- JPH0247548U JPH0247548U JP12691388U JP12691388U JPH0247548U JP H0247548 U JPH0247548 U JP H0247548U JP 12691388 U JP12691388 U JP 12691388U JP 12691388 U JP12691388 U JP 12691388U JP H0247548 U JPH0247548 U JP H0247548U
- Authority
- JP
- Japan
- Prior art keywords
- gas
- membrane
- pressure difference
- film
- gas 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.)
- Pending
Links
- 230000035699 permeability Effects 0.000 claims 3
- 238000005259 measurement Methods 0.000 claims 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Examining Or Testing Airtightness (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12691388U JPH0247548U (de) | 1988-09-27 | 1988-09-27 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12691388U JPH0247548U (de) | 1988-09-27 | 1988-09-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0247548U true JPH0247548U (de) | 1990-03-30 |
Family
ID=31378864
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12691388U Pending JPH0247548U (de) | 1988-09-27 | 1988-09-27 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0247548U (de) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010281788A (ja) * | 2009-06-08 | 2010-12-16 | Shimadzu Corp | エアロゾル微粒子計測装置 |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54116285A (en) * | 1977-11-04 | 1979-09-10 | Cigarette Components Ltd | Method and device for measuring porosity of sheet |
| JPS57146049A (en) * | 1981-03-04 | 1982-09-09 | Nissan Motor Co Ltd | Fuel injection valve |
-
1988
- 1988-09-27 JP JP12691388U patent/JPH0247548U/ja active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54116285A (en) * | 1977-11-04 | 1979-09-10 | Cigarette Components Ltd | Method and device for measuring porosity of sheet |
| JPS57146049A (en) * | 1981-03-04 | 1982-09-09 | Nissan Motor Co Ltd | Fuel injection valve |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010281788A (ja) * | 2009-06-08 | 2010-12-16 | Shimadzu Corp | エアロゾル微粒子計測装置 |