(According to Japan Quality Standard JIS R3205:1989, Australia New Zealand Quality Standard AS/NZS 2208:1996)
Outer Performance requirements:
Cracks: not allowed to exist.
Burst: The length or width must not exceed the glass thickness.
Scratch: shall not affect the usage.
Degumming: not allowed to exist.
The allowable number of point defects such as bubbles, intermediate layer impurities and other observable opaque objects as following:
|
Defects size λ, mm |
<λ≤ |
<λ≤ |
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|
Glass area S,m2 |
Any area |
S≤1 |
1<S≤2 |
2<S≤8 |
S≥8 |
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|
Allowed number of defects |
Glass layers for laminated |
2 layers |
can't be densely exist |
1 |
2 |
1/m2 |
1.2/m2 |
|
3 layers |
2 |
3 |
1.5/m2 |
1.8/m2 |
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|
4 layers |
3 |
4 |
2/m2 |
2.4/m2 |
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|
≥5 layers |
4 |
5 |
2.5/m2 |
3/m2 |
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Remark: 1, Accept defect size less than 0.5mm, don’t allow defect size more than 3mm. 2, When one of the following situations occurs, it means as densely existing: a) For two layers of glass, there are 4 or more defects, and the distance between each other is less than 200mm; b) For three layers of glass, there are 4 or more defects, and the distance between each other is less than 180mm; c) For four layers of glass, there are 4 or more defects, and the distance between each other is less than 150mm; d) For more than five layers of glass, there are 4 or more defects, and the distance between each other is less than 100mm. |
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