Ba 2-3 Ba:2-3%Min Si:68-73%Max  Al:1-2%Max Ca:1-2%Max

Ba 4-6 Ba:4-6%Min Si:68-72%Max  Al:1-2%Max Ca:1-2%Max

Ba 6-8 Ba:6-8%Min Si:65-70%Max  Al:1-2%Max Ca:1-2%Max

Ba 10 Ba:10%Min Si:60-70%Max  Al:2.0%Max Ca:2.0%Max C:1.0%Max S:0.05%Max

Ba 20 Ba:20%Min Si:55%Max  Al:2.0%Max Ca:3.0%Max C:1.0%Max Mn:0.4%Max  S:0.05%Max

Ba 25 Ba:25%Min Si:55%Max  Al:2.0%Max Ca:3.0%Max C:1.0%Max Mn:0.4%Max  S:0.05%Max

Ba 30 Ba:30%Min Si:50%Max  Al:2.0%Max Ca:3.0%Max C:1.0%Max Mn:0.4%Max             S:0.05%Max

Ba 35 Ba:35%Min Si:45%Max  Al:2.0%Max Ca:3.0%Max C:1.0%Max Mn:0.4%Max S:0.08%Max