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实验室经常要接触各种有机的和无机的化学试剂,而大部分化学试剂和化学反应产生的气体对人体是有害的。如不注意,有毒试剂、有毒气体、蒸气和烟尘可经皮肤、消化道、呼吸道侵入体内。微量毒物可在人体各组织内积蓄下来,当达到一定量时就会出现中毒症状。严重者会引起死亡。因此为避免中毒事故的发生,我们必须对实验室常见的有害物质和预防措施有所了解。实验室中接触最多的是化学试剂以及化学反应产生的有毒气体。
Laboratories often have access to a variety of organic and inorganic chemicals, and most of the chemicals and gases produced by chemical reactions are harmful to the human body. If not pay attention, toxic reagents, toxic gases, vapors and dust through the skin, digestive tract, respiratory tract invade the body. Trace poisons can accumulate in the tissues of the human body, and poisoning symptoms can occur when reaching a certain amount. Severe cases can cause death. Therefore, in order to avoid the poisoning accident, we must know about the common harmful substances in the laboratory and preventive measures. The most exposed labs are chemical reagents and toxic gases from chemical reactions.