JPS57191542A - Measuring method for dissolved oxygen - Google Patents

Measuring method for dissolved oxygen

Info

Publication number
JPS57191542A
JPS57191542A JP56077005A JP7700581A JPS57191542A JP S57191542 A JPS57191542 A JP S57191542A JP 56077005 A JP56077005 A JP 56077005A JP 7700581 A JP7700581 A JP 7700581A JP S57191542 A JPS57191542 A JP S57191542A
Authority
JP
Japan
Prior art keywords
oxygen
concentration
dissolved oxygen
sample water
air
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.)
Granted
Application number
JP56077005A
Other languages
Japanese (ja)
Other versions
JPH0130421B2 (en
Inventor
Akira Takahashi
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.)
Denka Co Ltd
DKK Corp
Original Assignee
DKK Corp
Denki Kagaku Kogyo KK
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 DKK Corp, Denki Kagaku Kogyo KK filed Critical DKK Corp
Priority to JP56077005A priority Critical patent/JPS57191542A/en
Publication of JPS57191542A publication Critical patent/JPS57191542A/en
Publication of JPH0130421B2 publication Critical patent/JPH0130421B2/ja
Granted legal-status Critical Current

Links

Classifications

    • 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)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Food Science & Technology (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)

Abstract

PURPOSE:To measure dissolved oxygen simply, by aerating air to a liquid to be measured and measuring the concentration of oxygen of a gas after aeration. CONSTITUTION:A blastipipe 2 is provided so as to open at a suitable depth in a liquid reagent to be measured 1 and air is aerated. The concentration of oxygen of a gas after aeration is measured by an oxygen detector 3 attached to the upper part of a cylindrical vessel 4. In the case where sample water is equillibrated with oxygen in air, e.g. when the concentration of dissolved oxygen is 9.76ppm at 15 deg.C, the concentration oxygen in the air passing through the sample water is not varied and dissolved oxygen is bubbled out in a gas phase at 21% oxygen concentration after passing through the sample water. In the case where the concentration of the dissolved oxygen in the sample water is low, dissolution of oxygen is carried out at the time of passing through the sample water and dissolved oxygen is bubbled out in the oxygen concentration lower than 21%. For example, in the case where the concentration of dissolved oxygen is 4.88ppm at 15 deg., the concentration of oxygen of the gas in an equillibrium state is 10.5% and the value in accordance with the concentration is detected by a detector.
JP56077005A 1981-05-21 1981-05-21 Measuring method for dissolved oxygen Granted JPS57191542A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56077005A JPS57191542A (en) 1981-05-21 1981-05-21 Measuring method for dissolved oxygen

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56077005A JPS57191542A (en) 1981-05-21 1981-05-21 Measuring method for dissolved oxygen

Publications (2)

Publication Number Publication Date
JPS57191542A true JPS57191542A (en) 1982-11-25
JPH0130421B2 JPH0130421B2 (en) 1989-06-20

Family

ID=13621642

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56077005A Granted JPS57191542A (en) 1981-05-21 1981-05-21 Measuring method for dissolved oxygen

Country Status (1)

Country Link
JP (1) JPS57191542A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62135955U (en) * 1986-02-20 1987-08-27
EP0355688A2 (en) * 1988-08-20 1990-02-28 MAN Roland Druckmaschinen AG Method for measuring the alcohol content of a damping liquid in an alcohol damping device of an offset printing machine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62135955U (en) * 1986-02-20 1987-08-27
EP0355688A2 (en) * 1988-08-20 1990-02-28 MAN Roland Druckmaschinen AG Method for measuring the alcohol content of a damping liquid in an alcohol damping device of an offset printing machine

Also Published As

Publication number Publication date
JPH0130421B2 (en) 1989-06-20

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