NL286020A - - Google Patents

Info

Publication number
NL286020A
NL286020A NL286020DA NL286020A NL 286020 A NL286020 A NL 286020A NL 286020D A NL286020D A NL 286020DA NL 286020 A NL286020 A NL 286020A
Authority
NL
Netherlands
Application number
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.)
Publication of NL286020A publication Critical patent/NL286020A/xx

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N31/00—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods
    • G01N31/002—Determining nitrogen by transformation into ammonia, e.g. KJELDAHL method
    • 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)
  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Biochemistry (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Molecular Biology (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Treating Waste Gases (AREA)
NL286020D 1961-12-07 NL286020A (zh)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR881250A FR1315804A (fr) 1961-12-07 1961-12-07 Procédé de détection et de dosage en valeur absolue de composés oxygénés de l'azote contenus dans les gaz industriels, notamment dans le gaz de fours à coke

Publications (1)

Publication Number Publication Date
NL286020A true NL286020A (zh)

Family

ID=8768256

Family Applications (1)

Application Number Title Priority Date Filing Date
NL286020D NL286020A (zh) 1961-12-07

Country Status (4)

Country Link
BE (1) BE625231A (zh)
ES (1) ES283113A1 (zh)
FR (1) FR1315804A (zh)
NL (1) NL286020A (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4385910A (en) * 1981-12-23 1983-05-31 Caterpillar Tractor Co. Apparatus and method for producing a gas having a controlled water vapor content

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4385910A (en) * 1981-12-23 1983-05-31 Caterpillar Tractor Co. Apparatus and method for producing a gas having a controlled water vapor content

Also Published As

Publication number Publication date
ES283113A1 (es) 1963-05-01
BE625231A (zh)
FR1315804A (fr) 1963-01-25

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