FR1562225A - - Google Patents
Info
- Publication number
- FR1562225A FR1562225A FR1562225DA FR1562225A FR 1562225 A FR1562225 A FR 1562225A FR 1562225D A FR1562225D A FR 1562225DA FR 1562225 A FR1562225 A FR 1562225A
- Authority
- FR
- France
- 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
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/75—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated
- G01N21/77—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator
- G01N21/78—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator producing a change of colour
- G01N21/783—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator producing a change of colour for analysing gases
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/75—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated
- G01N21/77—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator
- G01N21/78—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator producing a change of colour
- G01N21/81—Indicating humidity
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N31/00—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods
- G01N31/22—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods using chemical indicators
- G01N31/222—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods using chemical indicators for investigating moisture content
Landscapes
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Plasma & Fusion (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Biophysics (AREA)
- Molecular Biology (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR140726 | 1968-02-21 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR1562225A true FR1562225A (en) | 1969-04-04 |
Family
ID=8646295
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR1562225D Expired FR1562225A (en) | 1968-02-21 | 1968-02-21 |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR1562225A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0193037A2 (en) * | 1985-02-26 | 1986-09-03 | Siemens Aktiengesellschaft | The use of a chemically sensitive construction element |
EP0194463A2 (en) * | 1985-02-26 | 1986-09-17 | Siemens Aktiengesellschaft | Method for continuously measuring the partial pressure of gases and vapours |
EP0408488A1 (en) * | 1989-07-10 | 1991-01-16 | Georges H. Dr. Lyssy | Apparatus to measure the water vapour permeability of a material or object |
-
1968
- 1968-02-21 FR FR1562225D patent/FR1562225A/fr not_active Expired
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0193037A2 (en) * | 1985-02-26 | 1986-09-03 | Siemens Aktiengesellschaft | The use of a chemically sensitive construction element |
EP0194463A2 (en) * | 1985-02-26 | 1986-09-17 | Siemens Aktiengesellschaft | Method for continuously measuring the partial pressure of gases and vapours |
EP0193037A3 (en) * | 1985-02-26 | 1989-02-01 | Siemens Aktiengesellschaft Berlin Und Munchen | Chemically sensitive construction element |
EP0194463A3 (en) * | 1985-02-26 | 1989-02-01 | Siemens Aktiengesellschaft | Method for continuously measuring the partial pressure of gases and vapours |
EP0408488A1 (en) * | 1989-07-10 | 1991-01-16 | Georges H. Dr. Lyssy | Apparatus to measure the water vapour permeability of a material or object |
CH679337A5 (en) * | 1989-07-10 | 1992-01-31 | Georges H Dr Lyssy |
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |