... industry, dyeing industry, environmental protection etc. Especially suitable for food industry, sweetening agent such as cane sugar, ... , essence and spice, activated clay etc.Also used for chemical ntermediate, cystine, glycerin, itaconic acid, optical brightener ... -1999 orGB/T12496-1999.For external standard, refer to ASTM standard for activated carbon & AWWA standard for activated carbon.Packing: 20KG ...