一据统计 ,目前世界市场上约有7—8万种化学品 ,每年还有1000—2000种新的化学品进入市场。化学品的生产和使用是现代工业发展的标志 ,涉及到工业、运输、仓储、环保和劳动保护等多个领域。化学品在极大地丰富人类物质生活的同时 ,由于其本身的性质或生产、使用、销售、运输及 According to statistics, there are about 70,000 to 80,000 chemicals in the world market and 1,000 to 2,000 new chemicals enter the market each year. The production and use of chemicals are the hallmarks of the development of modern industry and involve many fields such as industry, transportation, storage, environmental protection and labor protection. Chemicals, while greatly enriching the material life of humankind, are often used in the production, use, sale, transport and