贊砂 硅≥72.87%,鋁≥16.43%,鐵≤1.32%,鈦≤0.07%,鈣≤0.03%,鎂≤0.03%,鉀4.25%左右,鈉≥0.66%左右,燒失≤4.28%,總量≥99.94,白度≥42.5/20.9,收縮≤4.8%《精準化驗》
①鉀砂,鋁16%,鉀4.5%,濕白20
②高溫砂,鋁17%,鉀2%,濕白25
鋁18%,鐵0.61%,鉀5.12%,鈉0.4%,干白56.8,濕白43.3
鋁39%,鐵0.5%,鈦0.8%,燒失14%
高鋁砂粉,鋁38%,鐵0.8%,白度60
鉀3%,鈉5%,白度70,鋁13%
鉀4%,鈉6%,鋁18%,燒白43.2