To provide a bag for constant volume dilution sampling device with less absorption of exhaust gas component, or less desorption of any exhaust gas component once adsorbed.
This bag is designed so as to be constituted of: a gas running section with internal channel system which allows run of gaseous matter; a pipe communicated to the internal channel system of the gas running section with plural gas vent holes, through which the gaseous matter can blow out on its circumferential wall; and the bag body itself made of flexible material, having an internal space for storing the pipe provided with a filler section, the appearance configuration of which is rotor-like or polygonal column in the internal space with full of the gas, to be expanded, when this internal space has been filled with gas, or to be folded, when the gas has been discharged from the internal space.
EKUSA TAKASHI
Akiko Sato
Saito Shindai