Qingdao Migo Glass Co.,Ltd is one of the most professional ultraclear prismatic glass/solar panel glass/solar module glass/ extra clear pattern glass manufacturers and suppliers in China. If you want to wholesale high quality glass products made in China, you can contact us. We have a professional factory at your service, please feel free to buy customized glass products at a reasonable price from us.
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Product Description
Features
Thickness 3.2mm
Ultraviolet transmissivity 85.01%
Visible light penetrativity 91.85%
Visible light reflectivity 7.93%
Sunlight direct transmissivity 92.0%
Sunlight direct reflectivity 7.63%
Sunlight direct absorptivity 0.49%
Solar energy total transmissivity 92.05%
| Table 1 | |||||
| items | Criteria | ||||
| Thickness | 3.2mm+/-0.2MM | ||||
| Figured pattern | Mistlite-C | ||||
| Transmittance | 91.5% or more | ||||
| Composition of Iron | ≤120ppm | ||||
| Table 2: Dimension | |||||
| Items | Criteria | ||||
| Product dimension | 1664x994mm | ||||
| Size tolerance | (+1.0, -1.0)mm | ||||
| Corner | 1-3mm | ||||
| Diagonals | Difference of the diagonals ≤ 0.2% in relation to the longest edge | ||||
| Total warpage | 0.3% or less to long edge | ||||
| partial warpage | 0.5/300 or less to all 300mm in all edges | ||||
| Table 3: Appearance | |||||
| Bubble | Round bubble: Bubbles whose maximum width is over 0.5mm | ||||
| Grades by size | allowed num. | Mis distance | |||
| Over 2x2.5mm | No | No | |||
| Over 1x1mm to 2x2.5mm | 5pcs/sheet | 250 | |||
| Over 0.7x1.0mm to 1x1mm | OK | - | |||
| Needle bubble: Bubbles whose maximum width is 0.7mm or less | |||||
| Grades by size | allowed num. | Mis distance | |||
| over 0.7x10mm | No | No | |||
| over 0.7x5mm to 0.7x10mm | 1pcs/sheet | 250 | |||
| over 0.7x2.0mm to 0.7x5mm | 3pcs/sheet | 250 | |||
| over 0.7x1.0mm to 0.7x2mm | 10pcs/sheet | - | |||
| less than 0.7x1.0mm | OK | - | |||
| Stone | all that can be seen from the distance of 500mm shouldn' t be allowed | ||||
| Scratch | 1x20mm or less, and also 3 pcs or less for between 1x4mm to 1x20mm | ||||
| Push scratch | They should be 1.0mm or less | ||||
| Stain | No findable stain at the distance of 1.0mm under standard fluorescent lamps if SO2 is used in the production process, it should be washed off | ||||
| Patterned error | No findable stain should be allowed for both surface | ||||
| Chip | Edge Length=< 3.0mm, Depth=< 1.6mm, Width=< 1.0mm and total 4 pcs or less | ||||
| Corner Length=< 1.5mm, Depth=< 3mm, Width=< 2mm and total 1 pcs or less | |||||
| Table 4: Tempering criteria | |||||
| item | Specification | Test measuring method | |||
| Impact resistance | No breakage with 227g steel ball from the height of 1.0m onto a 300x300mm specimen. | Support the whole edges in a 30mm width with a wood frame and drop a steel ball on the center of unpatterned surface. | |||
| Static load strength | No breakage under the static load of 245kg/m 2 in ten minutes. Specimen should be an actual product. |
Support the whole edges in a 30mm width with a wood frame and gently put weight bags evenly on the surface | |||
| Status of fragments | 〉40pcs/5cm x 5cm | Refer to the article 8.6" EN12150-1" . | |||
| Conformity to EN standard |
EN12150-1 EN12600 |
Certification is not required yet. | |||
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