FR1479996A - Apparatus for detecting the presence of gases or vapors in the atmosphere - Google Patents

Apparatus for detecting the presence of gases or vapors in the atmosphere

Info

Publication number
FR1479996A
FR1479996A FR61875A FR61875A FR1479996A FR 1479996 A FR1479996 A FR 1479996A FR 61875 A FR61875 A FR 61875A FR 61875 A FR61875 A FR 61875A FR 1479996 A FR1479996 A FR 1479996A
Authority
FR
France
Prior art keywords
vapors
gases
atmosphere
detecting
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
FR61875A
Other languages
French (fr)
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.)
International Gas Detectors Ltd
Original Assignee
International Gas Detectors 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
Priority claimed from GB1715161A external-priority patent/GB1029951A/en
Application filed by International Gas Detectors Ltd filed Critical International Gas Detectors Ltd
Priority to FR61875A priority Critical patent/FR1479996A/en
Application granted granted Critical
Publication of FR1479996A publication Critical patent/FR1479996A/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
    • 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
    • G01N33/0011—Sample conditioning
    • G01N33/0013—Sample conditioning by a chemical reaction
    • 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
    • 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
    • G01N33/0027—General constructional details of gas analysers, e.g. portable test equipment concerning the detector
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N7/00—Analysing materials by measuring the pressure or volume of a gas or vapour
    • G01N7/10—Analysing materials by measuring the pressure or volume of a gas or vapour by allowing diffusion of components through a porous wall and measuring a pressure or volume difference

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Physics & Mathematics (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Food Science & Technology (AREA)
  • Medicinal Chemistry (AREA)
  • Molecular Biology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
FR61875A 1961-06-11 1966-05-17 Apparatus for detecting the presence of gases or vapors in the atmosphere Expired FR1479996A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR61875A FR1479996A (en) 1961-06-11 1966-05-17 Apparatus for detecting the presence of gases or vapors in the atmosphere

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB1715161A GB1029951A (en) 1961-06-11 1961-06-11 Improvements in or relating to apparatus for detecting the presence of gases or vapours in the atmosphere
FR61875A FR1479996A (en) 1961-06-11 1966-05-17 Apparatus for detecting the presence of gases or vapors in the atmosphere

Publications (1)

Publication Number Publication Date
FR1479996A true FR1479996A (en) 1967-05-05

Family

ID=26170702

Family Applications (1)

Application Number Title Priority Date Filing Date
FR61875A Expired FR1479996A (en) 1961-06-11 1966-05-17 Apparatus for detecting the presence of gases or vapors in the atmosphere

Country Status (1)

Country Link
FR (1) FR1479996A (en)

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