FR423656A - Révélateur de grisou - Google Patents
Révélateur de grisouInfo
- Publication number
- FR423656A FR423656A FR423656DA FR423656A FR 423656 A FR423656 A FR 423656A FR 423656D A FR423656D A FR 423656DA FR 423656 A FR423656 A FR 423656A
- Authority
- FR
- France
- Prior art keywords
- revealer
- firedamp
- firedamp revealer
- 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
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title 1
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
- G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
- G01N27/04—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
- G01N27/14—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of an electrically-heated body in dependence upon change of temperature
- G01N27/16—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of an electrically-heated body in dependence upon change of temperature caused by burning or catalytic oxidation of surrounding material to be tested, e.g. of gas
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (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)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR423656T | 1910-12-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR423656A true FR423656A (fr) | 1911-04-24 |
Family
ID=1466481
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR423656D Expired FR423656A (fr) | 1910-12-14 | 1910-12-14 | Révélateur de grisou |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR423656A (fr) |
-
1910
- 1910-12-14 FR FR423656D patent/FR423656A/fr not_active Expired
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