To provide a sampling tube for a powder analysis which is relatively simple in constitution and manufactured inexpensively.
The sampling tube 12 extends in a longitudinal direction of a tubular main body part 31 having an inward static pressure opening 27 formed at an inner circumferential wall and, is fitted to an outer circumferential face of the tubular main body part 31. Moreover, the tube 12 has an outer shell part 32 with an outward static pressure opening 28. Longitudinal grooves 29, 30 are formed in the longitudinal direction of the tubular main body part 31 at least at either of confronting faces of the tubular main body part 31 and the outer shell part 32. The longitudinal grooves 29, 30 communicating with the inward static pressure opening 27 and outward static pressure opening 28 define pressure introduction paths.
ONO TETSUO
ISHIDA MASAAKI
ISHIZAKA KOUICHI
ISHIDA MASAAKI
SANKYO PAIOTEKU KK