发烟管套装500,测定气体的流向及流速,把发烟管弄断,连接上附带的膨胀球(吸耳球),轻捏球,玻璃管里的试剂被挤出,与空气中的水分发生反应,产生白烟,这样就可观察到气流方向及速度。Smoke Test Tubes,Determining gas flow direction in smoke,发烟管No.501
Break off both ends of the smoke tube and attach a rubber squeeze bulb to one end of the tube. When the bulb is squeezed, a chemical reaction produces white smoke. This smoke makes the air flow (in ventilation systems/ducts, etc.) visible.