| 摘要 |
PURPOSE:To prevent an adsorption loss of an exhaust gas and to improve a precision and stability of measurement of said gas by dipping a sampling line at a downstream side from a pipe for introducing a sample and all of the parts in an oil vessel, and circulating an oil to the outer circumferences of a sample probe and the pipe for introducing the sample to perform the temp. control. CONSTITUTION:The sampling line 4 at the downstream side from the pipe 3 for introducing the sample of an automobile exhaust gas, and all of the sampling parts 5-12 are dipped in the oil vessel 13, and the oil is circulated to the outer circumferences of the sample probe 2 and the pipe 3 by a pump 14 in the vessel 13 to perform the temp. control. Consequently the adsorption loss in the line of the exhaust gas is prevented, and the measuring precision and the stability are improved. |
