JPS6475934A - Sample collecting apparatus - Google Patents
Sample collecting apparatusInfo
- Publication number
- JPS6475934A JPS6475934A JP23226587A JP23226587A JPS6475934A JP S6475934 A JPS6475934 A JP S6475934A JP 23226587 A JP23226587 A JP 23226587A JP 23226587 A JP23226587 A JP 23226587A JP S6475934 A JPS6475934 A JP S6475934A
- Authority
- JP
- Japan
- Prior art keywords
- oxide film
- metal
- water
- sample water
- high temp
- 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
- Sampling And Sample Adjustment (AREA)
Abstract
PURPOSE:To accurately collect sample water, by immersing the liquid contact surface with the sample water of a sample collecting apparatus in high temp. water containing chromic acid to form an oxide film and suppressing the elution of the metal from the liquid contact surface to the sample water. CONSTITUTION:The title apparatus is connected to a high temp. and high pressure piping 1 through which high temp. and high pressure water flows, and a base valve 3, a vacuum device 4, a cooler 5 and a flow control valve 6 are arranged to a collecting piping 2 and the valve 6 is regulated to collect sample water. The treatment by high temp. water containing chromic acid is applied to the inner surface of the piping 2 to form an oxide film. The oxide film is allowed to function as the barrier of the diffusion of a metal from a metal base material to suppress the elution of the metal by the corrosion suppressing effect of the oxide film. Therefore, accurate sample water can be obtained.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP23226587A JPS6475934A (en) | 1987-09-18 | 1987-09-18 | Sample collecting apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP23226587A JPS6475934A (en) | 1987-09-18 | 1987-09-18 | Sample collecting apparatus |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6475934A true JPS6475934A (en) | 1989-03-22 |
Family
ID=16936540
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP23226587A Pending JPS6475934A (en) | 1987-09-18 | 1987-09-18 | Sample collecting apparatus |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6475934A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7408128B2 (en) | 2004-07-21 | 2008-08-05 | Brother Kogyo Kabushiki Kaisha | Switch apparatus and image forming apparatus using thereof |
CN111006911A (en) * | 2019-12-16 | 2020-04-14 | 江苏新宏大集团有限公司 | Hot sulfuric acid analysis sampling process flow |
-
1987
- 1987-09-18 JP JP23226587A patent/JPS6475934A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7408128B2 (en) | 2004-07-21 | 2008-08-05 | Brother Kogyo Kabushiki Kaisha | Switch apparatus and image forming apparatus using thereof |
CN111006911A (en) * | 2019-12-16 | 2020-04-14 | 江苏新宏大集团有限公司 | Hot sulfuric acid analysis sampling process flow |
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