JPS5550151A - Chemical oxygen demand meter - Google Patents
Chemical oxygen demand meterInfo
- Publication number
- JPS5550151A JPS5550151A JP12432478A JP12432478A JPS5550151A JP S5550151 A JPS5550151 A JP S5550151A JP 12432478 A JP12432478 A JP 12432478A JP 12432478 A JP12432478 A JP 12432478A JP S5550151 A JPS5550151 A JP S5550151A
- Authority
- JP
- Japan
- Prior art keywords
- electrolyte
- solution
- kno
- oxygen demand
- chemical oxygen
- 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.)
- Pending
Links
Abstract
PURPOSE: To make the measurements stable and accurate for a long time by using a solution of KNO3 as an electrolyte in a chemical oxygen demand meter for measuring the potential between two liquids while gradually feeding the electrolyte through a liquid communication portion of a slat bridge to a portion to be measured.
CONSTITUTION: A reservoir tank 3, which reserves electrolyte and into which a silver-silver halide electrode 1 is dipped, and a reaction container 4, which reserves a liquid to be measured and into which a platinum electrode 2 is dipped, are made to have communication through a salt bridge 5, which has its lower end portion equipped with a liquid communicating portion 6, thus constituting a chemical oxygen demand (COD) meter. As the aforementioned electrolyte, the conventional solution of KCl is replaced by the solution of KNO3. Since the liquid communicating portion 6 is made by embedding pin hole or poroud ceramics, clogging is liable to take place. By using the solution of KNO3 as the electrolyte, no clogging takes place for a period longer than three monthes so that the stable measurements can be accomplished.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12432478A JPS5550151A (en) | 1978-10-07 | 1978-10-07 | Chemical oxygen demand meter |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12432478A JPS5550151A (en) | 1978-10-07 | 1978-10-07 | Chemical oxygen demand meter |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5550151A true JPS5550151A (en) | 1980-04-11 |
Family
ID=14882512
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12432478A Pending JPS5550151A (en) | 1978-10-07 | 1978-10-07 | Chemical oxygen demand meter |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5550151A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8316474B2 (en) | 2006-03-29 | 2012-11-27 | Young Boung Kang | Drainage apparatus for a sink |
-
1978
- 1978-10-07 JP JP12432478A patent/JPS5550151A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8316474B2 (en) | 2006-03-29 | 2012-11-27 | Young Boung Kang | Drainage apparatus for a sink |
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