Description
Product Overview
The Karter Scientific glass capillary tube is engineered for high‑precision liquid transfer in a wide range of scientific settings. Each tube is fabricated from high‑quality borosilicate glass, offering excellent chemical resistance and thermal stability. The blue coloration provides immediate visual identification, reducing the risk of cross‑contamination in busy laboratory environments. With a total length of 75 mm, an inner diameter of 1.1‑1.2 mm and an outer diameter of 1.5‑1.6 mm, the tube delivers a consistent capillary action that enables accurate dosing of fluids as small as a few microliters. The product is supplied in a sealed vial containing 100 tubes, ensuring sterility until the point of use and simplifying inventory management for labs that require frequent replenishment.
![[Product front view showing all components]](https://www.kelivo.store/wp-content/uploads/2026/07/a98e525468294665a89d26cbc97ea512.jpg)
Usage
These capillary tubes are ideal for applications such as chromatography, micro‑injection, sample preparation, and diagnostic testing. Researchers in chemistry, biology, and materials science will find the tubes useful for delivering reagents, extracting small volumes from reaction mixtures, or loading samples onto analytical instruments. The clear, blue‑tinted glass allows technicians to monitor fluid movement in real time, which is especially valuable during delicate procedures like cell staining or enzyme assays. Because the tubes are fragile, they should be handled with tweezers or a dedicated capillary holder, and disposed of according to laboratory safety protocols after use. The 100‑tube packaging is perfect for teaching laboratories, where multiple students need access to reliable capillaries for hands‑on experiments.
Why Choose Us
Karter Scientific has a long history of supplying dependable laboratory glassware, and this capillary tube reflects that commitment to quality. Each tube undergoes rigorous inspection to ensure uniform dimensions and defect‑free glass, minimizing the chance of breakage during routine handling. The blue coding system aligns with industry standards for color‑coded lab supplies, making it easy to integrate into existing workflows. In addition, the product is backed by a responsive customer support team that can assist with technical questions, order tracking, and replacement requests. When you purchase this pack, you receive not only a high‑performance consumable but also the assurance of a reputable manufacturer dedicated to scientific excellence.
Key Features
- Premium borosilicate glass provides chemical resistance and thermal durability.
- Blue color coding offers instant visual identification, reducing mix‑ups.
- Precise 75 mm length and 1.1‑1.2 mm inner diameter ensure consistent capillary flow.
- Pack of 100 sealed tubes guarantees sterility and convenient inventory control.
- Dedicated customer support and easy replacement policy for peace of mind.
FAQ
Can these capillary tubes be autoclaved?
Yes, the borosilicate glass construction tolerates standard autoclave cycles (121 °C for 15‑20 minutes) without deformation, making them suitable for sterilization when required.
What is the recommended method for handling the tubes to avoid breakage?
Use tweezers or a specialized capillary holder, and avoid applying excessive force. Store the sealed vial in a protective container and handle the individual tubes gently.
Are the tubes compatible with all types of liquids?
The glass material is chemically inert to most aqueous and organic solvents. However, for highly corrosive acids or bases, verify compatibility with the specific chemical before use.
How should used tubes be disposed of?
Disposed tubes should be placed in a designated sharps container or a glass waste bin, following your institution’s safety and environmental guidelines.
Is there a larger bulk option available for high‑volume labs?
Yes, Karter Scientific also offers case packs of 5,000 tubes in both red and blue variants for laboratories with extensive consumption needs.




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