FR712909A - Rosin colorimeter device - Google Patents

Rosin colorimeter device

Info

Publication number
FR712909A
FR712909A FR712909DA FR712909A FR 712909 A FR712909 A FR 712909A FR 712909D A FR712909D A FR 712909DA FR 712909 A FR712909 A FR 712909A
Authority
FR
France
Prior art keywords
rosin
colorimeter device
colorimeter
rosin colorimeter
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
Application number
Other languages
French (fr)
Inventor
Raphael Mayet
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed filed Critical
Application granted granted Critical
Publication of FR712909A publication Critical patent/FR712909A/en
Expired legal-status Critical Current

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)
FR712909D 1931-03-09 1931-03-09 Rosin colorimeter device Expired FR712909A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR712909T 1931-03-09

Publications (1)

Publication Number Publication Date
FR712909A true FR712909A (en) 1931-10-15

Family

ID=9081633

Family Applications (1)

Application Number Title Priority Date Filing Date
FR712909D Expired FR712909A (en) 1931-03-09 1931-03-09 Rosin colorimeter device

Country Status (1)

Country Link
FR (1) FR712909A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2427790A (en) * 1945-01-10 1947-09-23 David A Korman Light beam comparator

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2427790A (en) * 1945-01-10 1947-09-23 David A Korman Light beam comparator

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