FR71908E - Improvements in photoelectric analysis for gas determination - Google Patents

Improvements in photoelectric analysis for gas determination

Info

Publication number
FR71908E
FR71908E FR71908DA FR71908E FR 71908 E FR71908 E FR 71908E FR 71908D A FR71908D A FR 71908DA FR 71908 E FR71908 E FR 71908E
Authority
FR
France
Prior art keywords
gas determination
photoelectric analysis
photoelectric
analysis
determination
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
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.)
Compagnie de Saint Gobain SA
Original Assignee
Compagnie de Saint Gobain SA
Manufactures des Glaces et Produits Chimiques de Saint Gobain SA
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 Compagnie de Saint Gobain SA, Manufactures des Glaces et Produits Chimiques de Saint Gobain SA filed Critical Compagnie de Saint Gobain SA
Application granted granted Critical
Publication of FR71908E publication Critical patent/FR71908E/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
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Plasma & Fusion (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
FR71908D 1951-03-19 1951-03-19 Improvements in photoelectric analysis for gas determination Expired FR71908E (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR71908T 1951-03-19

Publications (1)

Publication Number Publication Date
FR71908E true FR71908E (en) 1960-03-14

Family

ID=8703430

Family Applications (1)

Application Number Title Priority Date Filing Date
FR71908D Expired FR71908E (en) 1951-03-19 1951-03-19 Improvements in photoelectric analysis for gas determination

Country Status (1)

Country Link
FR (1) FR71908E (en)

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