NL246701A - - Google Patents

Info

Publication number
NL246701A
NL246701A NL246701DA NL246701A NL 246701 A NL246701 A NL 246701A NL 246701D A NL246701D A NL 246701DA NL 246701 A NL246701 A NL 246701A
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 NL246701A publication Critical patent/NL246701A/xx

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/0004—Gaseous mixtures, e.g. polluted air
    • G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
    • G01N33/0026—General constructional details of gas analysers, e.g. portable test equipment using an alternating circulation of another gas
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
    • G01N27/04—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
    • G01N27/06—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of a liquid
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
    • G01N27/04—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
    • G01N27/14—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of an electrically-heated body in dependence upon change of temperature
    • G01N27/18—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of an electrically-heated body in dependence upon change of temperature caused by changes in the thermal conductivity of a surrounding material to be tested
    • G01N27/185—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of an electrically-heated body in dependence upon change of temperature caused by changes in the thermal conductivity of a surrounding material to be tested using a catharometer

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Analytical Chemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Pathology (AREA)
  • Immunology (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Biochemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Combustion & Propulsion (AREA)
  • Medicinal Chemistry (AREA)
  • Food Science & Technology (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
  • Investigating Or Analyzing Materials Using Thermal Means (AREA)
  • Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
NL246701D 1958-12-29 NL246701A (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR782813A FR1220068A (fr) 1958-12-29 1958-12-29 Dispositif d'analyse de gaz
FR791805A FR75607E (fr) 1958-12-29 1959-04-11 Dispositif d'analyse de gaz

Publications (1)

Publication Number Publication Date
NL246701A true NL246701A (de)

Family

ID=26183716

Family Applications (1)

Application Number Title Priority Date Filing Date
NL246701D NL246701A (de) 1958-12-29

Country Status (7)

Country Link
US (1) US3018655A (de)
BE (1) BE585571A (de)
DE (1) DE1266022B (de)
FR (2) FR1220068A (de)
GB (1) GB938226A (de)
LU (1) LU38062A1 (de)
NL (1) NL246701A (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3449942A (en) * 1966-08-18 1969-06-17 Perkin Elmer Corp Isopiestic chromatographic detector
EP0096514A3 (de) * 1982-06-05 1984-10-31 Bl Technology Limited Feststellung brennbarer oder verbrennungsunterhaltender Bestandteile in Abgasen eines Verbrennungsmotors

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2826908A (en) * 1958-03-18 Integrating adsorption detector for gas
US2579352A (en) * 1950-04-28 1951-12-18 Gen Electric Method and apparatus for the quantitative measurement of impurities in an atmosphere
US2694923A (en) * 1952-06-30 1954-11-23 Phillips Petroleum Co System for gas analysis
US2883270A (en) * 1956-09-17 1959-04-21 Johnson Williams Inc Gas analyzers

Also Published As

Publication number Publication date
FR1220068A (fr) 1960-05-23
LU38062A1 (de)
US3018655A (en) 1962-01-30
FR75607E (fr) 1961-07-21
GB938226A (en) 1963-10-02
DE1266022B (de) 1968-04-11
BE585571A (de)

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