... +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 ... net each2, 3g, 17g, 100g, 200g, 227g, 250g, 400g, 454g, 500g, 1000g polythene bags in carton3, Or as clients requirements.