For rooms containing solid materials with toluene, where human operation is required, which standard should be used to determine the air exchange rate for such rooms?
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For rooms containing solid materials with toluene, where human operation is required, which standard should be used to determine the air exchange rate for such rooms?
GBZ2.1-2007: The occupational exposure limit for toluene in the workplace is MAC: 100mg/m3.
Are there any standard references for the required number of air changes?
“Factors such as the amount of hazardous substances present in the room, their volatility, the size of the room, the duration of each ventilation cycle, the volume of air exchanged during ventilation, and how ventilation points are located... all affect the actual concentration of hazardous substances in the room. How can a standard determine the required frequency of ventilation in order to ensure that occupational hazard levels in the area meet the specified standards? It is recommended to consult the special section on the design of occupational disease prevention facilities for this project, as it should provide detailed information on the preventive measures for that facility.