FR2512957B1 - - Google Patents

Info

Publication number
FR2512957B1
FR2512957B1 FR8117313A FR8117313A FR2512957B1 FR 2512957 B1 FR2512957 B1 FR 2512957B1 FR 8117313 A FR8117313 A FR 8117313A FR 8117313 A FR8117313 A FR 8117313A FR 2512957 B1 FR2512957 B1 FR 2512957B1
Authority
FR
France
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
FR8117313A
Other languages
French (fr)
Other versions
FR2512957A1 (en
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.)
RESEARCH INSTITUUT SESTO BV
Original Assignee
RESEARCH INSTITUUT SESTO BV
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 RESEARCH INSTITUUT SESTO BV filed Critical RESEARCH INSTITUUT SESTO BV
Priority to FR8117313A priority Critical patent/FR2512957A1/en
Publication of FR2512957A1 publication Critical patent/FR2512957A1/en
Application granted granted Critical
Publication of FR2512957B1 publication Critical patent/FR2512957B1/fr
Granted legal-status Critical Current

Links

Classifications

    • 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
    • G01N27/12—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of a solid body in dependence upon absorption of a fluid; of a solid body in dependence upon reaction with a fluid, for detecting components in the fluid
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Engineering & Computer Science (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • Pathology (AREA)
  • General Physics & Mathematics (AREA)
  • Physics & Mathematics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Combustion & Propulsion (AREA)
  • Food Science & Technology (AREA)
  • Medicinal Chemistry (AREA)
  • Investigating Or Analyzing Materials By The Use Of Fluid Adsorption Or Reactions (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
FR8117313A 1981-09-14 1981-09-14 Carbon-mon:oxide in air concentration monitor - provides visual and audible alarm signals if mon:oxide in proportion of building exceeds critical level Granted FR2512957A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR8117313A FR2512957A1 (en) 1981-09-14 1981-09-14 Carbon-mon:oxide in air concentration monitor - provides visual and audible alarm signals if mon:oxide in proportion of building exceeds critical level

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8117313A FR2512957A1 (en) 1981-09-14 1981-09-14 Carbon-mon:oxide in air concentration monitor - provides visual and audible alarm signals if mon:oxide in proportion of building exceeds critical level

Publications (2)

Publication Number Publication Date
FR2512957A1 FR2512957A1 (en) 1983-03-18
FR2512957B1 true FR2512957B1 (en) 1985-02-08

Family

ID=9262115

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8117313A Granted FR2512957A1 (en) 1981-09-14 1981-09-14 Carbon-mon:oxide in air concentration monitor - provides visual and audible alarm signals if mon:oxide in proportion of building exceeds critical level

Country Status (1)

Country Link
FR (1) FR2512957A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8400406A (en) * 1984-02-08 1985-09-02 Veg Gasinstituut Nv GAS BURNER.
CN115855765B (en) * 2022-12-26 2024-06-07 哲弗智能系统（上海）有限公司 Double-cavity smoke detection device, smoke alarm system and smoke alarm method

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1591372A (en) * 1976-08-27 1981-06-24 British Steel Corp Gas monitors

Also Published As

Publication number Publication date
FR2512957A1 (en) 1983-03-18

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Legal Events

Date Code Title Description
ST Notification of lapse