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前言MAK值是指工业物质在车间空气中以气体、蒸汽或浮游物形式存在的最高容许浓度。在这种浓度的反复或长期作用下,按每天工作8小时、每周平均工作45小时计,应不会对操作人员的健康有影响。确定MAK值时,主要考虑的是工业物质本身的作用特点,但也尽可能照顾到因操作方式不同引起的影响。对一种物质在毒理学和劳动卫生上所积累的知识,是确定MAK值的主要依据。原则上首先应总结在人身上所得的经验,然后再考虑动物试验的结果。MAK值是为车间保健服务的,用来判断某种物质在车间空气中的浓度是否具有危害性。然
Foreword MAK value is the maximum allowable concentration of industrial substances in the form of gas, vapor or float in the air of a workshop. Repeated or long-term effects of this concentration, working 8 hours a day, an average of 45 hours per week, should not affect the health of the operator. When determining the value of MAK, the main consideration is the role of industrial substances themselves, but also to take into account the impact of different modes of operation as much as possible. Knowledge of a substance’s toxicology and occupational hygiene is the primary basis for determining MAK values. In principle, you should first summarize the experience gained in humans and then consider the results of animal testing. MAK value is for the workshop health services, used to determine the concentration of a substance in the workshop air is harmful. Of course