Phmarmaceutical Neutral Glass Tube COE 7.0(Clear/Amber)
** Low borosilicate glass tube COE 7.0
** Sizes can be produced by customers' request.
Physical Property | No. | Physical performance | Numerical Value | Unit | 1 | Coefficienf of mean linear thermal expansion(20ºC,300ºC) | 7.0±0.1 | 10-6K-1 | 2 | Transformation temperature | 550±15 | ºC | 3 | Softening point | 750±10 | ºC | 4 | Working point | 1110±20 | ºC | 5 | Density at 20ºC | 2.46±0.02 | g/cm3 |
Main Composition | SiO2 | B2O3 | Na2O | BaO | CaO | Al2O3 | 70 | 6.6 | 11 | <2 | <3 | 6.2 |
Chenical Property | Water resistance to ISO720 | 1 | Water resistance to European Pharmacopoeia | 1 | Water resistance to USP23 | 1 | Acid resistance Class(DIN12116) | 1 | Alkali resistance Class(ISO695) | 2 |
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