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四、危险性的操作程序 1.吸量管 此种操作存在严重危险。用咀使用吸管吸取微生物培养物或悬液时,所胃明显危险是吸入液体。棉花塞头不能防止液体吸入口中。而当棉塞过紧时往往用力吸引,可能将棉塞和培养物一并吸入口中。用咀吸取菌液尚有导致气溶胶的危险性。棉花塞头只能阻挡在正常气压下进入吸管的空气携带微生物。在强正压或负压下并不是理想的滤菌装置,
Fourth, the dangerous operating procedures 1. Pipette Such operations are seriously dangerous. When using a pipette to aspirate a microbial culture or suspension using a pipette, the obvious hazard to the stomach is inhalation of the liquid. Cotton plug does not prevent liquid from inhaling into the mouth. When the tampon is too tight, it tends to be hard to attract, and the tampon and the culture may be sucked into the mouth together. Suction with the Tsui juice still lead to the risk of aerosol. Cotton plugs only block the airborne microbes that enter the straws under normal pressure. In the strong positive pressure or negative pressure is not the ideal filter device,