DE2830781C2 - Gas measurement method for the measurement of halothane in air using test tubes - Google Patents

Gas measurement method for the measurement of halothane in air using test tubes

Info

Publication number
DE2830781C2
DE2830781C2 DE19782830781 DE2830781A DE2830781C2 DE 2830781 C2 DE2830781 C2 DE 2830781C2 DE 19782830781 DE19782830781 DE 19782830781 DE 2830781 A DE2830781 A DE 2830781A DE 2830781 C2 DE2830781 C2 DE 2830781C2
Authority
DE
Germany
Prior art keywords
air
halothane
measurement
gas
dryer
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
DE19782830781
Other languages
German (de)
Other versions
DE2830781B1 (en
Inventor
Kurt 2401 Gross Groenau Leichnitz
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
Priority to DE19782830781 priority Critical patent/DE2830781C2/en
Priority to NL7903115A priority patent/NL7903115A/en
Priority to GB7923475A priority patent/GB2025612B/en
Priority to FR7918538A priority patent/FR2431127A1/en
Publication of DE2830781B1 publication Critical patent/DE2830781B1/en
Application granted granted Critical
Publication of DE2830781C2 publication Critical patent/DE2830781C2/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
    • 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

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Molecular Biology (AREA)
  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Biophysics (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
  • Sampling And Sample Adjustment (AREA)

Description

Die Erfindung betrifft ein Gasmeßverfahren entsprechend dem Gattungsbegriff des Anspruchs 1.The invention relates to a gas measuring method according to the preamble of claim 1.

Haiothan ist gesundheitsschädlich. Deshalb soll die am Arbeitsplatz auftretende Konzentration Werte im Bereich von etwa 1 ppm nicht überschreiten. Die Einhaltung dieser Werte sollte mit möglichst einfachen, am Arbeitsplatz anwendbaren Mitteln überwacht werden.Haiothan is harmful to health. Therefore, the concentration occurring at the workplace should be values in Do not exceed the range of around 1 ppm. Compliance with these values should be as simple as possible, the means applicable at the workplace are monitored.

Ein bekanntes tragbares Gerät zur Messung einiger Halogen-Kohlenwasserstoffe arbeitet nach dem bekannten Prüfröhrchen-Verfahren. Die zu untersuchende Luft wird mit einer Handpumpe durch ein Prüfröhrchen gesaugt.A known portable device for measuring some halogenated hydrocarbons operates according to the known one Detector tube method. The air to be examined is pumped through a test tube with a hand pump sucked.

Der Eintrittsseite des Prüfröhrchsns ist eine Pyrolysevorrichtung vorgeschaltet. In ihr strömt die angesaugte Luft an einem elektrisch beheizten Draht entlang. Das dort aus der Halogen-Kohlenwasserstoff-Verbindung abgespaltene Halogen führt zur Verfärbung des darauf abgestimmten Prüfröhrchens, die ein Maß für die Konzentration der in der Prüfluft vorhandenen Halogen-Kohlenwasserstoff-Verbindung ist. Eine Messung von Halothan ist mit der Meßanordnung Pyrolysevorrichtung-Prüfröhrchen nicht möglich. Der Feuchtigkeitsgehalt der Prüfluft verändert das Meßergebnis. (M-S-A Universal Tester, Bulletin No. 0815-6 mit SUMMARY DATA SHEET, March, 1972.)
Der Erfindung liegt die Aufgabe zugrunde, einA pyrolysis device is connected upstream of the inlet side of the test tube. In it, the sucked in air flows along an electrically heated wire. The halogen split off from the halogen-hydrocarbon compound there leads to the discoloration of the matching test tube, which is a measure of the concentration of the halogen-hydrocarbon compound present in the test air. A measurement of halothane is not possible with the measuring arrangement of the pyrolysis device test tube. The moisture content of the test air changes the measurement result. (MSA Universal Tester, Bulletin No. 0815-6 with SUMMARY DATA SHEET, March, 1972.)
The invention is based on the object

JO einfaches, leicht transportables und am Arbeitsplatz durchführbares Gasmeßverfahren zur Messung von Halothan zu schaffen.JO simple, easily transportable gas measurement method that can be carried out at the workplace for measuring To create halothane.

Die Lösung der Aufgabe erfolgt gemäß dem Kennzeichen des Anspruchs 1. Ein zur Durchführung des Verfahrens geeignetes Gasmeßgerät ist in den Ansprüchen 2 bzw. 3 beschrieben.The object is achieved according to the characterizing part of claim 1. A for implementation The gas meter suitable for the process is described in claims 2 and 3, respectively.

Mit dem Trockner ergeben sich von dem Feuchtigkeitsgehalt der Prüfluft unabhängig genaue Meßwerte in einem Meßbereich, der die Überwachung am Arbeitsplatz im Bereich der Konzentrations-Werte bei etwa ! ppm gestattet.With the dryer, precise measured values are obtained regardless of the moisture content of the test air in a measuring range that supports the monitoring at the workplace in the range of the concentration values approximately ! ppm allowed.

Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt. Darin sind ein Trockner 1, eine Pyrolysevornchtung 2, ein Chlor und Brom messendes Prüfröhrchen 3 und eine Gasfördereinrichtung 4 in Form einer handbetätigten Balgpumpe strömungsmäßig hintereinandergeschaltet. Der Trockner 1 besteht aus einem mit Magnesiumperchlorat gefüllten Glasröhrchen. Die Pyrolysevorrichtung 2 ist in ihrem Innern durch nicht dargestellte elektrische Mittel auf eine Temperatur von etwa 9000C aufgeheizt. Die Skala des Prüfröhrchens 3 ist für eine direkte Ablesung der Halothan-Konzentration ausgelegt. Bei Betätigung der Gasfördereinrichtung 4 wird durch das offene Ende des Trockners 1 die zu untersuchende Luft angesaugt, im Trockner 1 getrocknet, im Innern der Pyrolysevorrichtung 2 pyrolysiert und die Halothan-Konzentration im Prüfröhrchen 3 angezeigt.An embodiment of the invention is shown in the drawing. A dryer 1, a pyrolysis device 2, a test tube 3 measuring chlorine and bromine and a gas delivery device 4 in the form of a hand-operated bellows pump are connected in series in terms of flow. The dryer 1 consists of a glass tube filled with magnesium perchlorate. The interior of the pyrolysis device 2 is heated to a temperature of approximately 900 ° C. by electrical means (not shown). The scale of the test tube 3 is designed for a direct reading of the halothane concentration. When the gas delivery device 4 is actuated, the air to be examined is sucked in through the open end of the dryer 1, dried in the dryer 1, pyrolyzed inside the pyrolysis device 2 and the halothane concentration in the test tube 3 displayed.

Hierzu 1 Blatt Zeichnungen1 sheet of drawings

Claims (3)

Patentansprüche:Patent claims: 1. Gasmeßverfahren zur Messung von Halothan in Luft unter Verwendung eines Prüfröhrchens, dem eine Pyrolysevorrichtung vorgeschaltet ist, dadurch gekennzeichnet, daß die Prüflufi vor der Pyrolysevorrichtung (2) einen Trockner (1) durchströmt1. Gas measurement method for measuring halothane in air using a test tube, the a pyrolysis device is connected upstream, characterized in that the test flufi before the pyrolysis device (2) flows through a dryer (1) 2. Gasmeßgerät zur Durchführung des Verfahrens nach Anspruch 1 mit einem Prüfröhrchen und einer vorgeschalteten Pyrolysevorrichtung, dadurch gekennzeichnet, daß der Pyrolysevorrichtung (2) ein Trockner (1) vorgeschaltet ist2. Gas meter for performing the method according to claim 1 with a test tube and a upstream pyrolysis device, characterized in that the pyrolysis device (2) is a Dryer (1) is connected upstream 3. Gasmeßgerät nach Anspruch 2, dadurch gekennzeichnet, daß der Trockner (1) Magnesiumperchlorat enthält.3. Gas meter according to claim 2, characterized in that the dryer (1) is magnesium perchlorate contains.
DE19782830781 1978-07-13 1978-07-13 Gas measurement method for the measurement of halothane in air using test tubes Expired DE2830781C2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
DE19782830781 DE2830781C2 (en) 1978-07-13 1978-07-13 Gas measurement method for the measurement of halothane in air using test tubes
NL7903115A NL7903115A (en) 1978-07-13 1979-04-20 METHOD FOR MEASURING HALOTHAN IN AIR USING A TEST TUBE.
GB7923475A GB2025612B (en) 1978-07-13 1979-07-05 Determination of pyrolyzable material in air
FR7918538A FR2431127A1 (en) 1978-07-13 1979-07-12 METHOD FOR MEASURING THE HALOTHANE RATE IN THE AIR USING AN INDICATOR TUBE

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19782830781 DE2830781C2 (en) 1978-07-13 1978-07-13 Gas measurement method for the measurement of halothane in air using test tubes

Publications (2)

Publication Number Publication Date
DE2830781B1 DE2830781B1 (en) 1979-11-08
DE2830781C2 true DE2830781C2 (en) 1982-08-26

Family

ID=6044277

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19782830781 Expired DE2830781C2 (en) 1978-07-13 1978-07-13 Gas measurement method for the measurement of halothane in air using test tubes

Country Status (4)

Country Link
DE (1) DE2830781C2 (en)
FR (1) FR2431127A1 (en)
GB (1) GB2025612B (en)
NL (1) NL7903115A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3217832C2 (en) * 1982-05-12 1984-10-11 Drägerwerk AG, 2400 Lübeck Detector tubes for measuring gases
DE102013006548B4 (en) * 2013-04-16 2022-02-03 Dräger Safety AG & Co. KGaA Measuring device, reaction carrier and measuring method

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2384368A (en) * 1943-04-15 1945-09-04 Baker & Co Inc Combustion of halogenated organic vapors
DE1598641A1 (en) * 1966-02-08 1972-03-02 Inst Chemii Ogolnej Continuous method for the determination of small amounts of fumes from halogen derivatives of organic compounds and hydrogen halides in air and other gases

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
NICHTS-ERMITTELT *

Also Published As

Publication number Publication date
GB2025612A (en) 1980-01-23
FR2431127A1 (en) 1980-02-08
DE2830781B1 (en) 1979-11-08
NL7903115A (en) 1980-01-15
FR2431127B1 (en) 1981-07-17
GB2025612B (en) 1982-12-01

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Legal Events

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8339 Ceased/non-payment of the annual fee