Name of Index Standard Value Test Value （AL2O3）Content,% ≥15.60 15.70 (Fe) Content,% ≤ 0.50 0.20 Water Insoluble Content,% ≤ 0.20 0.10 PH (1% water soluble) Content,% ≥ 3.0 3.15 Granularity (mm) ≤ 10 8-10 http://www.winwinchemicals.com