Product Item: High-Retroreflectivity Glass BeadsCategory: HR Road Marking BeadViews: 1490Product Manual：High Retroreflectivity Glass Beads, Direct-Melt Glass beads, Virgin glass beads,High Retroreflectiveity Glass Beads,AS /NZS 2009: 2006 Glass beads: Type BHR, Type CHR, Type DHR ,Airport Marking Glass
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AS /NZS 2009: 2006 Glass Beads: Type BHR, Type CHR, Type DHR
Item
Standard
Appearance
Outer clean and transparent, without visible bubble and impurity.
Density
2.4-2.6 g/cm3
Bulk Density
1.57g/cm3
Roundness
>90%
Refractive Index
1.5 Min.
Composition
SiO2 content: 71-74%
Soften Degree
720-730 centigrade
Retroreflectivity
>500mcd/lux/m2
AASHTO M247-13 Type 3
>1700
0
1400-1700
0-5
1180-1400
0-10
1000-1180
40-85
850-1000
5-40
<850
AASHTO M247-13 Type 4
>2000
1700-2000
0-20
<1000
AASHTO M247-13 Type 5
>2350
2000-2350
<1180
TT-B-1325D Type IV
Micron
Type 4 A
Type 4 B
1700
100
1400
95-100
1180
80-95
1000
10-40
850
35-70
600
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