Testing Items
|
Annealed glass
|
Tempered glass
|
Laminated glass
|
Glass thickness/mm
|
6
|
6
|
6.38
|
A 2260g steel ball fell freely from 4m high
|
Penetrated
|
Penetrated
|
Not penetrated
|
A 227g steel ball fell freely from 12m high at 40 °C
|
Penetrated
|
Penetrated
|
Not penetrated
|
A 227g steel ball fell freely from 10m high at -20°C
|
Penetrated
|
Penetrated
|
Not penetrated
|
A 10kg human head model fell from 1.5m high
|
Penetrated
|
Penetrated
|
Not penetrated
|
Glass types
|
Status of breakage
|
Laminated glass
|
Security breakage: it might be broken by a pendulum impact, but the glass would remain as a whole sheet, and the broken pieces and splinters are adhered firmly to the interlayer.
|
Annealed glass
|
Broken easily once it is hit, the typical breakage status is : many elongated sharp splinters come out
|
Tempered glass
|
Unbroken unless at the huge impact: glass was broken and burst into numerous particles
|
Wired glass
|
Similar with common annealed glass in the status of breakage
|
Coated annealed glass
|
PET film on glass surface can provide additional protection; glass is fragile, and splinters flew toward the inside when the surface film was separated from the broken glass.
|
Interlayer film
|
Structure
|
Maximum falling height (MBH)
|
EVA
|
G/0.25mm/G
|
0.70m
|
G/0.40mm/G
|
1.90m
|
|
G/0.25mm/PET/0.25mm/G
|
3.50m
|
|
PVB
|
G/0.385mm/G
|
2.75m
|
G/0.76mm/G
|
5.75m
|
Color
Performance
|
clear
|
green
|
blue
|
gray
|
Visible light transmittance/%
|
82.1
|
71
|
48.2
|
48.8
|
Visible light reflectance/%
|
8.1
|
7.1
|
6.4
|
5.8
|
Solar transmittance/%
|
60.4
|
49.9
|
34.6
|
32.6
|
Solar reflectance/%
|
7.0
|
5.7
|
5.8
|
5.3
|
Solar heat gain coefficient (SHGC)
|
0.69
|
0.61
|
0.50
|
0.49
|
Shading coefficient (SC)
|
0.80
|
0.71
|
0.58
|
0.57
|
Glass composite/mm
|
3+0.38+3
|
3+0.76+3
|
3+1.14+3
|
5+0.38+5
|
5+0.76+5
|
Weighted sound isolation/dB
|
34
|
35
|
35
|
36
|
36
|
Glass composite/mm
|
6+0.38+6
|
6+0.76+6
|
6+1.14+6
|
6+1.52+6
|
12+1.52+12
|
Weighted sound isolation/dB
|
36
|
38
|
38
|
39
|
41
|