GB235458A - Improvements in and relating to apparatus for comparing the colour of liquids by reflected and transmitted light - Google Patents

Improvements in and relating to apparatus for comparing the colour of liquids by reflected and transmitted light

Info

Publication number
GB235458A
GB235458A GB2700624A GB2700624A GB235458A GB 235458 A GB235458 A GB 235458A GB 2700624 A GB2700624 A GB 2700624A GB 2700624 A GB2700624 A GB 2700624A GB 235458 A GB235458 A GB 235458A
Authority
GB
United Kingdom
Prior art keywords
liquids
colour
transmitted light
comparing
group
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
GB2700624A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
HENRY AUGUSTUS ELLIS
BDH Chemicals Ltd
Original Assignee
HENRY AUGUSTUS ELLIS
BDH Chemicals Ltd
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 by HENRY AUGUSTUS ELLIS, BDH Chemicals Ltd filed Critical HENRY AUGUSTUS ELLIS
Priority to GB2700624A priority Critical patent/GB235458A/en
Publication of GB235458A publication Critical patent/GB235458A/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)
  • Spectrometry And Color Measurement (AREA)
  • Investigating Or Analysing Materials By The Use Of Chemical Reactions (AREA)

Abstract

235,458. British Drug Houses, Ltd., and Ellis, H. A. Nov. 12, 1924. Colours, comparing.-The colour of liquids is compared by refleded and transmitted light with the colour of one or more standard liquids, all the liquids being contained in capillary tubes. A group or a series of groups c of two or more capillary tubes containing coloured solutions are mounted on a sheet of white card a provided with an opening b through which transmitted light may pass. The liquid to be tested is placed in a group of tubes similar to those containing the standard liquid, and the group is placed in one or other of the spaces g, whereby both transmitted and reflected light may be used for comparison. The method is stated to be specially applicable for determining the degree of acidity by the use of indicators.
GB2700624A 1924-11-12 1924-11-12 Improvements in and relating to apparatus for comparing the colour of liquids by reflected and transmitted light Expired GB235458A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2700624A GB235458A (en) 1924-11-12 1924-11-12 Improvements in and relating to apparatus for comparing the colour of liquids by reflected and transmitted light

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2700624A GB235458A (en) 1924-11-12 1924-11-12 Improvements in and relating to apparatus for comparing the colour of liquids by reflected and transmitted light

Publications (1)

Publication Number Publication Date
GB235458A true GB235458A (en) 1925-06-18

Family

ID=10252641

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2700624A Expired GB235458A (en) 1924-11-12 1924-11-12 Improvements in and relating to apparatus for comparing the colour of liquids by reflected and transmitted light

Country Status (1)

Country Link
GB (1) GB235458A (en)

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