JPS552959A - Automatic cod measuring device - Google Patents
Automatic cod measuring deviceInfo
- Publication number
- JPS552959A JPS552959A JP7615278A JP7615278A JPS552959A JP S552959 A JPS552959 A JP S552959A JP 7615278 A JP7615278 A JP 7615278A JP 7615278 A JP7615278 A JP 7615278A JP S552959 A JPS552959 A JP S552959A
- Authority
- JP
- Japan
- Prior art keywords
- tank
- water
- weighing
- tested
- opened
- 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
Landscapes
- Automatic Analysis And Handling Materials Therefor (AREA)
Abstract
PURPOSE: To obtain constantly accurate measurement results, to take most reliable COD values of the oxidation capacity of oxidation-reduction agents through electronic control.
CONSTITUTION: The water to be tested is introduced into a weighing tank 3 from a test water sipply pipe 2 with a pinch valve 1 opened. The diluent water to be tested is led into said weighing tank 3 from a diluent tank 5 through a supply pipe 6 with a pinch valve 4 opened. Said weighing tank 3 has a capacity of 20ml for example. Excess water is drained through an overflow pipe 7. The water and diluent water in said weighting tank 3 are introduced into a measuring tank 10 through a conduit 9 with a pinch valve 8 opened. Further given kinds of reagent are fed to a reagent weighing tank 18 from reagent storage tanks 16W17 by pumps P1 and P2 for weighing, and into said measuring tank 10 through an auxiliary weighing tank 19 to measure the COD value of the water to be tested. The oxidation reduction potential in said measuring tank 10 is detected by a detecting electrode 11. The signal of thus-obtained detection value is fed to a detector 12 for amplification and transferred to an arithmetic section 13 to control the operation of said pinch valves 1, 4 and 8.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7615278A JPS552959A (en) | 1978-06-22 | 1978-06-22 | Automatic cod measuring device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7615278A JPS552959A (en) | 1978-06-22 | 1978-06-22 | Automatic cod measuring device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS552959A true JPS552959A (en) | 1980-01-10 |
Family
ID=13597041
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7615278A Pending JPS552959A (en) | 1978-06-22 | 1978-06-22 | Automatic cod measuring device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS552959A (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5069294A (en) * | 1973-10-19 | 1975-06-10 | ||
JPS6156958A (en) * | 1984-08-28 | 1986-03-22 | Yokogawa Hokushin Electric Corp | Hydrazine concentration measuring apparatus |
US5667754A (en) * | 1995-09-25 | 1997-09-16 | Hach Company | Device for chloride ion removal prior to chemical oxygen demand analysis |
US5683914A (en) * | 1995-09-25 | 1997-11-04 | Hach Company | Method for chloride ion removal prior to chemical oxygen demand analysis |
WO2004025672A3 (en) * | 2002-09-11 | 2004-06-24 | Korea Biosystems Corp | Composite electrode for electrochemical cod measurement |
CN103777030A (en) * | 2014-01-26 | 2014-05-07 | 石家庄德润环保科技有限公司 | Automatic laboratory chemical oxygen demand analysis device |
-
1978
- 1978-06-22 JP JP7615278A patent/JPS552959A/en active Pending
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5069294A (en) * | 1973-10-19 | 1975-06-10 | ||
JPS5629999B2 (en) * | 1973-10-19 | 1981-07-11 | ||
JPS6156958A (en) * | 1984-08-28 | 1986-03-22 | Yokogawa Hokushin Electric Corp | Hydrazine concentration measuring apparatus |
US5667754A (en) * | 1995-09-25 | 1997-09-16 | Hach Company | Device for chloride ion removal prior to chemical oxygen demand analysis |
US5683914A (en) * | 1995-09-25 | 1997-11-04 | Hach Company | Method for chloride ion removal prior to chemical oxygen demand analysis |
US5932174A (en) * | 1995-09-25 | 1999-08-03 | Hach Company | Device for chloride ion removal prior to chemical oxygen demand analysis |
WO2004025672A3 (en) * | 2002-09-11 | 2004-06-24 | Korea Biosystems Corp | Composite electrode for electrochemical cod measurement |
CN103777030A (en) * | 2014-01-26 | 2014-05-07 | 石家庄德润环保科技有限公司 | Automatic laboratory chemical oxygen demand analysis device |
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