Pre-Pulled Micropipettes, Perfect for Closed Container Integrity Testing
- February 01, 2021
WPI pre-pulled pipettes (MicroTips) are a popular choice for pharmaceutical companies carrying out CCIT (Closed Container Integrity Testing). Each MicroTip is individually tested and inspected and can be shipped with a certificate of compliance.
CCIT is an important part in understanding the biological safety and suitability of primary packaging. It is used to assess the potential of the container closure system to maintain a sterile barrier or to prevent leakage resulting in contamination or loss of the drug. A good overview of Understanding Container Closure Integrity Testing can be found on the American Pharmaceutical Review site.
WPI can quickly supply your need for consistently sized, pre-pulled, glass, calibrated micropipettes. Tip diameters (ID) range from 0.1 to 10 µm. Silanized Tips (Luer Shank) are available. Silanization waterproofs the glass to retard when inserting into cells. This will not let the outside fluid run down the glass pipettes and get inside so easily. These glass needles are fabricated from Schott Duran borosilicate glass.
- Every glass pipette individually tested and inspected
- Schott Duran borosilicate glass pipettes
- 0.5 µm and smaller ID micropipettes include internal glass fiber for easy filling
- Tip inner diameter tolerance ±20%
- Short taper yields high strength
- Nominal length ≈ 50 mm
- OD:ID = 1.33:1
- Vacuum packed
- Glass Outside Diameter: 1.0 mm thin wall
- MicroTips with an ID smaller than 1 µm have a filament
- 10 Micropipettes per package
Certificate of Compliance
A Certificate of Compliance is available for these MicroTips. Please request one when placing your order.
Models Available
With Luer Connector
| Order code | Tip ID | Shank Length | Glass OD | Filament | Fire Polish |
| TIP01TW1F-L | 0.1µm | -- | 1.0mm Thin wall | Yes | -- |
| TIP02TW1F-L | 0.2 µm | -- | 1.0mm Thin wall | Yes | -- |
| TIP05TW1F-L | 0.5 µm | -- | 1.0mm Thin wall | Yes | -- |
| TIP1TW1-L | 1 µm | -- | 1.0mm Thin wall | No | -- |
| TIP2TW1-L | 2 µm | -- | 1.0mm Thin wall | No | -- |
| TIP5TW1-L | 5 µm | -- | 1.0mm Thin wall | No | -- |
| TIP10TW1-L | 10 µm | -- | 1.0mm Thin wall | No | -- |
| TIP30TW1-L | 30 µm | -- | 1.0mm Thin wall | No | -- |
Without Luer connector
| Order code | Tip ID | Glass OD | Filament | Fire Polish |
| TIP01TW1F | 0.1µm | 1.0mm Thin wall | Yes | No |
| TIP02TW1F | 0.2 µm | 1.0mm Thin wall | Yes | No |
| TIP03TW1F | 0.3 µm | 1.0mm Thin wall | Yes | No |
| TIP04TW1F | 0.4 µm | 1.0mm Thin wall | Yes | No |
| TIP05TW1F | 0.5 µm | 1.0mm Thin wall | Yes | No |
| TIP1TW1 | 1 µm | 1.0mm Thin wall | No | Yes |
| TIP2TW1 | 2 µm | 1.0mm Thin wall | No | Yes |
| TIP5TW1 | 5 µm | 1.0mm Thin wall | No | Yes |
| TIP10TW1 | 10 µm | 1.0mm Thin wall | No | Yes |
| TIP20TW1 | 20 µm | 1.0mm Thin wall | No | Yes |
| TIP30TW1 | 30 µm | 1.0mm Thin wall | No | Yes |
Specifications
| Type | Description | |
| CTE (20 °C; 300 °C) | 3.3± 0.110-6/K | |
| Transformation temperature Tg | 525 ± 15 °C | |
| Density | 2.23 ± 0.02 g/cm3 | |
| Temperature at the viscosity | 1013 dPa·s 107.6 dPa·s 104 dPa·s | 560 ± 10°C 820 ± 10°C 1260 ± 20°C |
| Heat conductivity λ at 100 °C Specific heat CP | 1.2W/(m·K) 0.8J / (g·K) | |
| Elasicity-modulus Poisson-ratio μ | 64GPa 0.20GPa | |
| Photoelasticity Refractive index nd | 4.0·10-6 mm² / N 1.473mm² / N | |
| Relative dielectric constant tan δ | at 1 MHz and 25 °C | 4.6 10-4 37 10-4 |
| Tk 100 (DIN 52326) | 250°C | |
| Classes of chemical stability | water acid alkaline solution | DIN ISO 719 DIN 12 116 DIN ISO 695 |
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