TABLE I
Glass Chemical Composition Expressed as Elemental Oxides (wt %) from Supplier A and Supplier B
Chemical Composition (wt %)
SiO
2
B
2
O
3
Al
2
O
3
Na
2
O
K
2
O
CaO + BaO
Other Elements
Glass A
74
9.5
6.5
7.8
<0.1
1.5
0.7
Glass B
72
10
7.5
6.0
1.9
2.0
0.6