Description
Product Overview
The Kimble 73500-650 N-51A culture tube is engineered from high‑quality borosilicate glass that delivers exceptional chemical resistance and optical clarity. Each tube holds a precise 1 mL volume, making it ideal for a wide range of laboratory applications, from microbiological cultures to analytical chemistry assays. The rim top design provides a secure, leak‑free seal while allowing easy insertion and removal of samples, reducing the risk of contamination during handling. The tubes are manufactured to comply with ASTM Specification E438, Type I, Class B requirements, ensuring uniform wall thickness, consistent dimensions, and reliable performance across batches. Dimensions of the tube are optimized for bench‑top workflows, with a compact footprint that fits standard incubators, shakers, and storage racks. The clear glass construction enables straightforward visual inspection of culture growth, precipitation, or color changes without the need for additional lighting or equipment. Each tube is individually inspected for defects, guaranteeing that researchers receive a product that meets rigorous quality standards.
![[Product front view showing all components]](https://www.opticstore.store/wp-content/uploads/2026/08/a5f6703598254d05a1e6c3c5bb89fda2.jpg)
Usage
These culture tubes are suited for a variety of laboratory environments, including academic research labs, industrial quality‑control facilities, and clinical diagnostic settings. The 1 mL capacity is perfect for small‑scale inoculations, enzyme reactions, and sample preservation. The rim top allows for the use of standard caps or sealing films, providing flexibility for both short‑term experiments and long‑term storage. Because the glass is resistant to sodium leaching, the tubes maintain sample integrity even when exposed to aggressive reagents or high‑temperature sterilization processes such as autoclaving. Users can confidently employ the tubes in aerobic or anaerobic cultures, as the clear glass permits easy monitoring of gas production and turbidity. The tubes are also compatible with common laboratory equipment, including vortex mixers, centrifuges, and spectrophotometers, enabling seamless integration into existing workflows. For high‑throughput applications, the trays of 1000 tubes streamline inventory management and reduce the time spent searching for individual units.
Why Choose Us
Choosing Kimble for your culture tube needs means selecting a brand with decades of experience in laboratory glassware manufacturing. Our commitment to quality is reflected in the stringent testing protocols each batch undergoes, from dimensional verification to impact resistance assessments. The tubes are shrink‑wrapped in protective plastic film, keeping them aligned and safeguarded against breakage during shipping and storage. This packaging approach also minimizes the risk of cross‑contamination, ensuring that each tube arrives sterile and ready for immediate use. Our customer support team is available to assist with product inquiries, technical specifications, and order fulfillment, providing a reliable point of contact for laboratories of any size. Additionally, the competitive pricing of the 1000‑piece case offers cost efficiency without compromising on performance, making it an economical choice for large‑scale projects. By adhering to industry standards and continuously improving our manufacturing processes, Kimble delivers products that scientists trust for critical experiments.
Key Features
- Uniform 1 mL volume ensures precise dosing and reproducible results
- Rim top design provides a secure seal and easy sample access
- High‑quality borosilicate glass resists chemical attack and thermal shock
- Clear construction allows quick visual assessment of culture growth
- Dedicated customer support and reliable after‑sales service for all orders
FAQ
What is the maximum temperature the tubes can withstand?
The borosilicate glass used in these tubes is rated for autoclaving at temperatures up to 121 °C (250 °F) for standard sterilization cycles without compromising structural integrity.
Can the tubes be used for anaerobic cultures?
Yes, the clear glass and secure rim top allow for the use of anaerobic sealing caps or films, making them suitable for both aerobic and anaerobic microbial work.
How are the tubes packaged to prevent breakage?
Each set of tubes is arranged in a rigid tray and then shrink‑wrapped in a protective plastic film, keeping the tubes aligned and cushioning them against impacts during transport.
Do the tubes meet any specific industry standards?
They comply with ASTM Specification E438, Type I, Class B glass requirements, ensuring consistent quality and performance across all units.
Is there a recommended storage condition for the tubes?
Store the tubes in a cool, dry place away from direct sunlight. The shrink‑wrapped packaging helps maintain sterility and protects the glass from environmental stress.







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