This standard informs about the physical and chemical properties and hazards of ester substances, and stipulates emergency measures in the event of leakage of ester substances, treatment methods at the leak site, and disposal methods at the leak site. This standard applies to the treatment of leakage of ester substances included in GB 12268-2012 Category 3, Category 5, Item 5.2, Category 6, Item 6.1 and Category 8 during storage, production, use, operation, transportation, etc. , disposal.