BE555203A - - Google Patents
Info
- Publication number
- BE555203A BE555203A BE555203DA BE555203A BE 555203 A BE555203 A BE 555203A BE 555203D A BE555203D A BE 555203DA BE 555203 A BE555203 A BE 555203A
- Authority
- BE
- Belgium
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
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B17/00—Fire alarms; Alarms responsive to explosion
- G08B17/10—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means
- G08B17/117—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means by using a detection device for specific gases, e.g. combustion products, produced by the fire
Landscapes
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Biochemistry (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Plasma & Fusion (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Investigating Or Analysing Materials By The Use Of Chemical Reactions (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB373757A GB820293A (en) | 1957-02-04 | 1957-02-04 | Improvements in gas detectors |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE555203A true BE555203A ( ) |
Family
ID=9764003
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE555203D BE555203A ( ) | 1957-02-04 |
Country Status (3)
| Country | Link |
|---|---|
| BE (1) | BE555203A ( ) |
| FR (1) | FR1173953A ( ) |
| GB (1) | GB820293A ( ) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3114610A (en) * | 1961-05-17 | 1963-12-17 | Martin Marietta Corp | Continuous sampling gas analyzer |
-
0
- BE BE555203D patent/BE555203A/xx unknown
-
1957
- 1957-02-04 GB GB373757A patent/GB820293A/en not_active Expired
- 1957-02-11 FR FR1173953D patent/FR1173953A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB820293A (en) | 1959-09-16 |
| FR1173953A (fr) | 1959-03-04 |