| 摘要 |
PROBLEM TO BE SOLVED: To improve accuracy in measurement of the amount of ammonia contained in an exhaust gas.SOLUTION: An exhaust-gas sampler 10 comprises: a tubular probe 12 that has an opening 13 for allowing entry of a part of an exhaust gas G from an exhaust-gas passage 1 at one end of the probe 12; a tubular extraction tube 20 that is removably attached to the inside of the probe 12 and has an opening 21 for allowing entry of the exhaust gas G having entered the probe 12 at one end of the extraction tube 20 and a connection part 22 connected to an extraction apparatus 100 for extracting ammonia from the exhaust gas G at the other end of the extraction tube 20; and a guide 30 mounted on the circumference of the extraction tube 20. |
