| 摘要 |
PROBLEM TO BE SOLVED: To provide a groundwater-sampling apparatus by which a sampling operation is performed easily, by which a groundwater can be sampled in a short time and whose reproducibility is enhanced. SOLUTION: The groundwater-sampling apparatus is constituted of a sealed water storage tank 6 which comprises a groundwater-sampling port 4 at its tip and whose tip part is equipped with a conical tube 5 with an internally installed water shutoff ball valve 3 used to open or close the port 4, a vacuum tank 5 connected to the tank 6 via a longer hose 9, a vacuum pump 17 connected to the vacuum tank 15 via a pipe 16, a longer rope 9 connected to the tank 6 and a stopper 1 which is mounted on the conical tube 5 and which has a mudguard function.
|
