... , 20-30. 30-40, 40-60, 60-80, .... MnosodiumGlutamateItemGB/T8967-2000/FCCIVSpecificationPurity99% up ,90%, 80% etcSpecific rotation+24.8~+25.3°Loss ... on drying≤0.5%Fe mg/kg≤5 mgSulphate (SO42-)≤0.05%Pb mg ... /kg≤1 mgChloride(Cr)≤0.05%Mesh standard8-12, 16-24, 20,30,40, 40-60, 60-80, 80-100, 80 ...