CA2072522C - Colorimetric testing and measuring device for gases - Google Patents

Colorimetric testing and measuring device for gases

Info

Publication number
CA2072522C
CA2072522C CA 2072522 CA2072522A CA2072522C CA 2072522 C CA2072522 C CA 2072522C CA 2072522 CA2072522 CA 2072522 CA 2072522 A CA2072522 A CA 2072522A CA 2072522 C CA2072522 C CA 2072522C
Authority
CA
Canada
Prior art keywords
carrier
indicator
moisture
gases
diethylphthalate
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 - Fee Related
Application number
CA 2072522
Other languages
English (en)
French (fr)
Other versions
CA2072522A1 (en
Inventor
Wolfgang Evers
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.)
Draegerwerk AG and Co KGaA
Original Assignee
Draegerwerk AG and Co KGaA
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 Draegerwerk AG and Co KGaA filed Critical Draegerwerk AG and Co KGaA
Publication of CA2072522A1 publication Critical patent/CA2072522A1/en
Application granted granted Critical
Publication of CA2072522C publication Critical patent/CA2072522C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N31/00Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods
    • G01N31/22Investigating 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
    • G01N31/223Investigating 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 presence of specific gases or aerosols
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N31/00Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods
    • G01N31/22Investigating 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
    • G01N31/223Investigating 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 presence of specific gases or aerosols
    • G01N31/224Investigating 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 presence of specific gases or aerosols for investigating presence of dangerous gases

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Biochemistry (AREA)
  • Biophysics (AREA)
  • Molecular Biology (AREA)
  • Physics & Mathematics (AREA)
  • Analytical Chemistry (AREA)
  • Dispersion Chemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Toxicology (AREA)
  • Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
  • Investigating Or Analysing Materials By The Use Of Chemical Reactions (AREA)
CA 2072522 1991-06-29 1992-06-26 Colorimetric testing and measuring device for gases Expired - Fee Related CA2072522C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19914121633 DE4121633C2 (de) 1991-06-29 1991-06-29 Kolorimetrisches Prüf- und Meßgerät für Gase
DEP4121633.4 1991-06-29

Publications (2)

Publication Number Publication Date
CA2072522A1 CA2072522A1 (en) 1992-12-30
CA2072522C true CA2072522C (en) 1995-08-01

Family

ID=6435100

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2072522 Expired - Fee Related CA2072522C (en) 1991-06-29 1992-06-26 Colorimetric testing and measuring device for gases

Country Status (3)

Country Link
EP (1) EP0521300A2 (enrdf_load_stackoverflow)
CA (1) CA2072522C (enrdf_load_stackoverflow)
DE (1) DE4121633C2 (enrdf_load_stackoverflow)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4420567A (en) * 1981-10-22 1983-12-13 Mda Scientific, Inc. Hydride gas detecting tape
JPS61296268A (ja) * 1985-06-25 1986-12-27 Nippon Paionikusu Kk 検知剤
DE4020753A1 (de) * 1989-09-22 1991-04-04 Draegerwerk Ag Kolorimetrisches pruef- und messgeraet fuer hydridgas

Also Published As

Publication number Publication date
DE4121633C2 (de) 1998-09-17
DE4121633A1 (de) 1993-01-07
CA2072522A1 (en) 1992-12-30
EP0521300A2 (de) 1993-01-07
EP0521300A3 (enrdf_load_stackoverflow) 1994-03-23

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed