... /pe bags 4.Delivery date:spot goodsPotassium sorbate1.Chemical Name: Potassium sorbate.2,4-di-ethene acid kalium, 2,4-Hexadienoic acid ... is two years.9.Quality standard : GB13736-2008, FCC-IV/E202 TEST ITEM FCC-IV/E202GB13736-2008AppearanceWhite granularWhite granularAssay, %98.0 ... .038Heavy metals(as Pb), ≤%10ppm0.001Aidehyde10ppm0.001Arsenic, ≤%3ppm0.0003Lead, ≤%5ppm Potassium Sorbate