MICRO GLASS BEADS 6088A
CHEMICAL ANALYSIS (%) |
Chemical Composition |
Sio2 |
Al2O3 |
CaO |
MgO |
TiO2 |
Na2O3,K2O |
B2O3 |
Soad Lime Glass Beads |
70-73 |
0.8-1.0 |
7-12 |
1.0-4.5 |
- |
13-15 |
- |
Appearance: Clean, transparent, no obvious impurity
Refractive index: ≥1.5
Density 2.4 – 2.6 g/cm3
SiO2 content ≥70 %
Roundness: see tables below
Specification of Class A
: Partical size distribution, roundness and defects
BS6088 CLASS A |
Sieve |
% Retained |
Spherical Beads% |
Defective Beads % |
1180µm |
0-3 |
>70 |
<30 |
850µm |
5-20 |
425µm |
65-95 |
<425µm |
0-10 |
|