根据省政府《浙江省化学危险物品安全管理办法》的规定,按照《浙江省化学危险物品生产许可证实施细则》和考核标准,经检查考核,省经贸委石油化工行业管理办公室于2001年5月10日,以石化字[2001]30号文件,公布了杭州气体厂等44家企业为第三批许可生产化学危险 According to the provincial government “Zhejiang Chemical Hazardous Materials Safety Management Measures,” the provisions of “Zhejiang Province, the implementation of hazardous chemicals manufacturing license,” and assessment criteria, the inspection examination, Provincial Economic and Trade Commission Petrochemical Industry Management Office in May 2001 On the 10th, document No. 36 [2001] of Shihuazi was announced, and 44 enterprises such as Hangzhou Gas Factory were announced as the third batch of permitted chemical dangers