Neutral Pharmaceutical Glass Tube with Great Hydrolytic Resistance Performance
Pharmaceutical glass tube plays a major role in the manufacturing process of pharmaceutical parental containers.
Neutral Pharmaceutical Glass Tube commonly refers to tubes made from neutral borosilicate glass with a coefficient of mean linear thermal expansion of 5.0. Generally, it has exceptional chemical stability and high heat resistance to thermal shock and sudden temperature change. It is typically used as a raw material by the pharmaceutical packaging companies to manufacture primary packaging products and plays a major role in the manufacturing process of pharmaceutical parental containers.
- Both clear and amber glass tubes are available
- High chemical resistance
- Great hydrolytic resistance
- Compliance with ISO 719 standards
- Customized glass tubes are available
- Special discount for large orders and various promotion campaigns
|Main Composition (%)|
|Coefficient of mean linear thermal expansion at (20 °C; 300 °C) acc. to ISO 7991||4.9 × 10-6 K-1|
|Transformation temperature Tg||515 °C|
|Glass temperature at annealing point logη=13||535 °C|
|Glass temperature at soft point logη=7.6||783 °C|
|Glass temperature at working point logη=4||1020 °C|
|Density p at 25 °C||2.32 g/cm3|
|Acc. to ISO 719||HGB1|
|Acc. to USP 25||Type I|
|Acid resistance||A I|
Limit Values in the Hydrolytic Resistance Grains Test (Boiling Water Test)
|Class||Consumption of hydrolytic acid solution (4.2) per gram of glass grains (ml/g)||Equivalent of alkali expressed as mass of sodium oxide (Na2O) per gram of glass grains (μg/g)|
|HGB1||Up to and including 0.10||Up to and including 31|
|HGB2||From 0.10 up to and including 0.20||From 31 up to and including 62|
|HGB3||From 0.20 up to and including 0.85||From 62 up to and including 264|
|HGB4||From 0.85 up to and including 2.0||From 264 up to and including 620|
|HGB5||From 2.0 up to and including 3.5||From 620 up to and including 1085|
|Notes: "HGB" stands for the hydrolytic resistance of glass grains according to the boiling water test method.|
- High chemical resistance, neutrality, leak-tightness and stability
- Optional glass-tube coating for protection against scratches
- Application-specific cutting of tube ends
- Protection from contamination during transport and processing into flasks and ampoules
|Outside Diameter Range (mm)||Wall Thickness Range (mm)||Outside Diameter Tolerance (mm)||Wall Thickness Tolerance (mm)|
Pharmaceutical glass tubes are commonly used to produce high-quality vials, ampoules and cartridges for the primary pharmaceutical packaging made of neutral borosilicate glass.
Glass vials made of pharmaceutical glass tubes.
Glass ampoules made of pharmaceutical glass tubes.
Glass cartridges made of pharmaceutical glass tubes.
Various glass containers made of pharmaceutical glass tubes.
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