FR454158A - Method and apparatus for classifying powders, liquids, etc. - Google Patents
Method and apparatus for classifying powders, liquids, etc.Info
- Publication number
- FR454158A FR454158A FR454158DA FR454158A FR 454158 A FR454158 A FR 454158A FR 454158D A FR454158D A FR 454158DA FR 454158 A FR454158 A FR 454158A
- Authority
- FR
- France
- Prior art keywords
- liquids
- classifying powders
- classifying
- powders
- 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
- 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
- G01N21/29—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands using visual detection
- G01N21/293—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands using visual detection with colour charts, graduated scales or turrets
Landscapes
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material 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 |
---|---|---|---|
FR454158T | 1913-02-10 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR454158A true FR454158A (en) | 1913-06-27 |
Family
ID=1494191
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR454158D Expired FR454158A (en) | 1913-02-10 | 1913-02-10 | Method and apparatus for classifying powders, liquids, etc. |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR454158A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL7612020A (en) * | 1975-10-31 | 1977-05-03 | Merck Patent Gmbh | DEVICE AND METHOD FOR ANALYTICAL DETERMINATION OF MATERIALS IN A SOLUTION. |
FR2540991A1 (en) * | 1983-02-10 | 1984-08-17 | Signorel Yves | Device for measuring the degrees of coloration of surfaces by comparison with numbered shades of coloration |
-
1913
- 1913-02-10 FR FR454158D patent/FR454158A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL7612020A (en) * | 1975-10-31 | 1977-05-03 | Merck Patent Gmbh | DEVICE AND METHOD FOR ANALYTICAL DETERMINATION OF MATERIALS IN A SOLUTION. |
FR2540991A1 (en) * | 1983-02-10 | 1984-08-17 | Signorel Yves | Device for measuring the degrees of coloration of surfaces by comparison with numbered shades of coloration |
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