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Glass tube made from neutral borosilicate glass
Outside Diameter: 6-32mm Wall Thickness: 0.5-1.5mm Length:1250-1800mm
Standard: USP, EP and JP
All of the products are produced in the workshops, which meet with the requirements of GMP standard.
Physical Data |
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1) | expansion coefficient | 5.0×10-6K-1 |
| a)working point | >1100°C |
| b)softening point | 760-790°C |
| c)annealing point | 530-550°C |
| d) Strain Point | 515°C |
2) | density p at25°C | 2.32 |
Chemical Data |
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1) | hydrolytic resistance | 0.035H1 |
2) | acid resistance | I1 |
3) | alkali resistance | A2 |
Composition |
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1) | SiO2 | 75 |
2) | B2O3 | 11.2 |
3) | Al2O3 | 5.4 |
4) | Fe2O3 | 0.02 |
5) | CaO | 0.6 |
6) | K2O | 0.5 |
7) | Na2O | 6.5 |
8) | BaO | 0.3 |