FR1251609A - Method and device for measuring traces of gas - Google Patents
Method and device for measuring traces of gasInfo
- Publication number
- FR1251609A FR1251609A FR821463A FR821463A FR1251609A FR 1251609 A FR1251609 A FR 1251609A FR 821463 A FR821463 A FR 821463A FR 821463 A FR821463 A FR 821463A FR 1251609 A FR1251609 A FR 1251609A
- Authority
- FR
- France
- Prior art keywords
- gas
- measuring traces
- traces
- measuring
- 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
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
- G01N27/416—Systems
- G01N27/4162—Systems investigating the composition of gases, by the influence exerted on ionic conductivity in a liquid
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Physics & Mathematics (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Plasma & Fusion (AREA)
- Engineering & Computer Science (AREA)
- Molecular Biology (AREA)
- Electrochemistry (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR821463A FR1251609A (en) | 1959-03-20 | 1960-03-16 | Method and device for measuring traces of gas |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEF27997A DE1077894B (en) | 1959-03-20 | 1959-03-20 | Method and device for measuring gas traces |
FR821463A FR1251609A (en) | 1959-03-20 | 1960-03-16 | Method and device for measuring traces of gas |
Publications (1)
Publication Number | Publication Date |
---|---|
FR1251609A true FR1251609A (en) | 1961-01-20 |
Family
ID=25974252
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR821463A Expired FR1251609A (en) | 1959-03-20 | 1960-03-16 | Method and device for measuring traces of gas |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR1251609A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1298312B (en) * | 1963-05-31 | 1969-06-26 | Nippon Oxygen Co Ltd | Method for displaying the concentration of traces of oxygen in a gas mixture |
EP0012945A1 (en) * | 1978-12-28 | 1980-07-09 | Siemens Aktiengesellschaft | Process for measuring the emission of gaseous inorganic fluorinated or chlorinated compounds |
FR2636139A1 (en) * | 1988-08-02 | 1990-03-09 | Sp K Tekhn | DEVICE FOR DETERMINING THE AIR CONTENT OF CYANHYDRIC ACID VAPORS |
-
1960
- 1960-03-16 FR FR821463A patent/FR1251609A/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1298312B (en) * | 1963-05-31 | 1969-06-26 | Nippon Oxygen Co Ltd | Method for displaying the concentration of traces of oxygen in a gas mixture |
EP0012945A1 (en) * | 1978-12-28 | 1980-07-09 | Siemens Aktiengesellschaft | Process for measuring the emission of gaseous inorganic fluorinated or chlorinated compounds |
FR2636139A1 (en) * | 1988-08-02 | 1990-03-09 | Sp K Tekhn | DEVICE FOR DETERMINING THE AIR CONTENT OF CYANHYDRIC ACID VAPORS |
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