SAMPLING DEVICE FOR VOLATILE GAS IN SOIL AND SAMPLING METHOD USING THE SAME

摘要

PROBLEM TO BE SOLVED: To provide a small-size sampling device for volatile gas in soil, capable of simply sampling a proper amount of volatile gas from a sampling hole bored in soil and capable of enhancing sampling accuracy and sampling efficiency.;SOLUTION: The sampling device has a cylinder 10 having a detachable leading end lid part 12, the piston 11, provided in the cylinder 10 and a projected leading end part 15 having a bag-mounting port 14 of a tetrabag 20 on the side of the cylinder 10 of the leading end lid part 12 and is provided with a gas suction hole 16, communicating with the bag mounting port 14 provided on the opposite side of the leading end lid part 12. The piston 11 is drawn out, after air in the tetrabag 20 is discharged, by pushing in the piston 11 to directly suck and sample the volatile gas in the tetrabag 20 from the projected leading end part 15.;COPYRIGHT: (C)2003,JPO