| 摘要 |
PCT No. PCT/GB93/02334 Sec. 371 Date Jun. 8, 1995 Sec. 102(e) Date Jun. 8, 1995 PCT Filed Nov. 12, 1993 PCT Pub. No. WO94/11732 PCT Pub. Date May 26, 1994A calibration system includes an air system having a blower unit (10), a flow meter (16) and means (15) for controlling an airflow through a mixing manifold (17) to which a metered amount of a test gas can be added from either a mass flow controller (19) or a syringe drive unit (21). |
