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WO1985002680A3 - Gas testing apparatus - Google Patents

Gas testing apparatus

Info

Publication number
WO1985002680A3
WO1985002680A3 PCT/FR1984/000288 FR8400288W WO8502680A3 WO 1985002680 A3 WO1985002680 A3 WO 1985002680A3 FR 8400288 W FR8400288 W FR 8400288W WO 8502680 A3 WO8502680 A3 WO 8502680A3
Authority
WO
WIPO (PCT)
Prior art keywords
reactant
colored
gas
sensor
receptacle
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.)
Ceased
Application number
PCT/FR1984/000288
Other languages
French (fr)
Other versions
WO1985002680A2 (en
Inventor
Jacques Ponsy
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of WO1985002680A2 publication Critical patent/WO1985002680A2/en
Publication of WO1985002680A3 publication Critical patent/WO1985002680A3/en
Anticipated expiration legal-status Critical
Ceased 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
    • G01N21/75—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated
    • G01N21/77—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator
    • G01N21/78—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator producing a change of colour
    • G01N21/783—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator producing a change of colour for analysing gases
    • 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
    • G01N31/22—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods using chemical indicators

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Molecular Biology (AREA)
  • Biophysics (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Plasma & Fusion (AREA)
  • Investigating Or Analysing Materials By The Use Of Chemical Reactions (AREA)

Abstract

Apparatus for determining the concentration of a given substance in a gas, by passage of a predetermined volume of said gas into a receptacle containing a material having a colored reaction with the substance. Said apparatus comprises a chamber (6) which is deformable by a given volume and which may be connected either with a gas supply conduit (10) or with a conduit opening outside through the receptacle (14) containing the colored reactant (15), a light source (18) arranged facing the colored reactant, a photoelectric sensor (19) also arranged facing the colored reactant, the light source and the sensor being arranged so that the light from the light source may reach the sensor only after it has passed through the colored reactant, an indicator (21) displaying the sensor current, and hence the light quantity which has traversed the reactant (15), and means for passing a given gas volume into the receptacle.
PCT/FR1984/000288 1983-12-07 1984-12-06 Gas testing apparatus Ceased WO1985002680A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR83/19959 1983-12-07
FR8319959A FR2556469B3 (en) 1983-12-07 1983-12-07 APPARATUS FOR GAS CONTROL

Publications (2)

Publication Number Publication Date
WO1985002680A2 WO1985002680A2 (en) 1985-06-20
WO1985002680A3 true WO1985002680A3 (en) 1985-08-01

Family

ID=9295126

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FR1984/000288 Ceased WO1985002680A2 (en) 1983-12-07 1984-12-06 Gas testing apparatus

Country Status (4)

Country Link
EP (1) EP0164386A1 (en)
JP (1) JPS61500631A (en)
FR (1) FR2556469B3 (en)
WO (1) WO1985002680A2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4803843A (en) * 1988-02-12 1989-02-14 Carrier Corporation Low pressure refrigerant contaminant tester

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2795223A (en) * 1952-08-06 1957-06-11 Drager Otto H Apparatus for sampling the human breath
US3114610A (en) * 1961-05-17 1963-12-17 Martin Marietta Corp Continuous sampling gas analyzer
FR2151902A5 (en) * 1971-08-30 1973-04-20 Draegerwerk Ag
US3870469A (en) * 1973-04-30 1975-03-11 Nalco Chemical Co Apparatus and method for monitoring the presence of volatile organic lead compounds
US4298010A (en) * 1978-11-08 1981-11-03 Dragerwerk Aktiengesellschaft Breathing alcohol testing device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2795223A (en) * 1952-08-06 1957-06-11 Drager Otto H Apparatus for sampling the human breath
US3114610A (en) * 1961-05-17 1963-12-17 Martin Marietta Corp Continuous sampling gas analyzer
FR2151902A5 (en) * 1971-08-30 1973-04-20 Draegerwerk Ag
US3870469A (en) * 1973-04-30 1975-03-11 Nalco Chemical Co Apparatus and method for monitoring the presence of volatile organic lead compounds
US4298010A (en) * 1978-11-08 1981-11-03 Dragerwerk Aktiengesellschaft Breathing alcohol testing device

Also Published As

Publication number Publication date
EP0164386A1 (en) 1985-12-18
WO1985002680A2 (en) 1985-06-20
FR2556469B3 (en) 1987-06-05
JPS61500631A (en) 1986-04-03
FR2556469A1 (en) 1985-06-14

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Legal Events

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