FR1562225A - - Google Patents

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Publication number
FR1562225A
FR1562225A FR1562225DA FR1562225A FR 1562225 A FR1562225 A FR 1562225A FR 1562225D A FR1562225D A FR 1562225DA FR 1562225 A FR1562225 A FR 1562225A
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
Other languages
French (fr)
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 filed Critical
Application granted granted Critical
Publication of FR1562225A publication Critical patent/FR1562225A/fr
Expired legal-status Critical Current

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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
    • 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
    • G01N21/81—Indicating humidity
    • 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
    • G01N31/222—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 for investigating moisture content
FR1562225D 1968-02-21 1968-02-21 Expired FR1562225A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR140726 1968-02-21

Publications (1)

Publication Number Publication Date
FR1562225A true FR1562225A (en) 1969-04-04

Family

ID=8646295

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1562225D Expired FR1562225A (en) 1968-02-21 1968-02-21

Country Status (1)

Country Link
FR (1) FR1562225A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0193037A2 (en) * 1985-02-26 1986-09-03 Siemens Aktiengesellschaft The use of a chemically sensitive construction element
EP0194463A2 (en) * 1985-02-26 1986-09-17 Siemens Aktiengesellschaft Method for continuously measuring the partial pressure of gases and vapours
EP0408488A1 (en) * 1989-07-10 1991-01-16 Georges H. Dr. Lyssy Apparatus to measure the water vapour permeability of a material or object

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0193037A2 (en) * 1985-02-26 1986-09-03 Siemens Aktiengesellschaft The use of a chemically sensitive construction element
EP0194463A2 (en) * 1985-02-26 1986-09-17 Siemens Aktiengesellschaft Method for continuously measuring the partial pressure of gases and vapours
EP0193037A3 (en) * 1985-02-26 1989-02-01 Siemens Aktiengesellschaft Berlin Und Munchen Chemically sensitive construction element
EP0194463A3 (en) * 1985-02-26 1989-02-01 Siemens Aktiengesellschaft Method for continuously measuring the partial pressure of gases and vapours
EP0408488A1 (en) * 1989-07-10 1991-01-16 Georges H. Dr. Lyssy Apparatus to measure the water vapour permeability of a material or object
CH679337A5 (en) * 1989-07-10 1992-01-31 Georges H Dr Lyssy

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Legal Events

Date Code Title Description
ST Notification of lapse