NL6810428A - - Google Patents
Info
- Publication number
- NL6810428A NL6810428A NL6810428A NL6810428A NL6810428A NL 6810428 A NL6810428 A NL 6810428A NL 6810428 A NL6810428 A NL 6810428A NL 6810428 A NL6810428 A NL 6810428A NL 6810428 A NL6810428 A NL 6810428A
- Authority
- NL
- Netherlands
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
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
- G01N21/35—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light
- G01N21/37—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light using pneumatic detection
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DES0112405 | 1967-10-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL6810428A true NL6810428A (en) | 1969-04-18 |
Family
ID=7531757
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL6810428A NL6810428A (en) | 1967-10-16 | 1968-07-23 |
Country Status (4)
| Country | Link |
|---|---|
| CH (1) | CH484425A (en) |
| FR (1) | FR1588321A (en) |
| GB (1) | GB1186957A (en) |
| NL (1) | NL6810428A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3734631A (en) * | 1971-05-28 | 1973-05-22 | Hewlett Packard Co | Nondispersive infrared gas analyzer employing solid state emitters and photodetectors |
| GB8602328D0 (en) * | 1986-01-30 | 1986-03-05 | Cogent Ltd | Chemical monitor |
| GB8718151D0 (en) * | 1987-07-31 | 1987-09-09 | Sieger Ltd | Gas analyser |
-
1968
- 1968-07-23 NL NL6810428A patent/NL6810428A/xx unknown
- 1968-10-09 FR FR1588321D patent/FR1588321A/fr not_active Expired
- 1968-10-14 GB GB4850768A patent/GB1186957A/en not_active Expired
- 1968-10-15 CH CH1539568A patent/CH484425A/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| GB1186957A (en) | 1970-04-08 |
| FR1588321A (en) | 1970-04-10 |
| CH484425A (en) | 1970-01-15 |