化学品在当今社会是人类生产和生活中不可缺少的一部分,然而相当一部分化学品因其固有的易燃、易爆、有毒、有害等特性,在生产、运输、贮藏、使用过程中易造成安全事故,对人类社会构成较大的威胁。对化学品进行分类及标识有利于在化学品的生产、运输、贮藏、使用过程中减少事故 In today’s society, chemicals are an indispensable part of human production and life. However, a considerable part of chemicals are easy to cause safety during production, transportation, storage and use because of their inherent flammable, explosive, toxic and harmful characteristics Accidents, constitute a greater threat to human society. The classification and identification of chemicals are good for reducing accidents in the production, transportation, storage and use of chemicals