关键词: 职业性接触毒物, 混合介质, 分类, 急性毒性, GHS

Abstract: There are many kinds of chemical media involved in petrochemical plants. These chemical media not only have flammable and explosive characteristics, but also may cause different degrees of toxic damage to human body. In order to reduce and avoid injuries caused by toxicant, it is necessary to understand the health hazards of different chemical media to human body and the classification methods for hazards of mixed media, and improve the relevant design according to the hazards of these occupational exposure to toxicant. This paper briefly introduces the relevant standards for the classification of occupational exposure to toxicant in China and discusses the classification methods for hazards of occupational exposure to toxicant in mixed media, which may provide some reference.

Key words: occupational exposure to toxicant, mixed media, classification, acute toxicity, GHS (Globally Harmonized System of Classification and Labelling of Chemicals)