Let’s Dive into Kimble/Kontes Flask Narrow Mouth 50ML CS12 26500B 50
The Kimble/Kontes Flask Narrow Mouth 50ML CS12 26500B 50 – it might not sound like the most exciting piece of kit, but for certain applications, this little borosilicate glass flask is an indispensable tool. Manufactured by Kimble/Kontes, this 50ML flask features a narrow mouth and a flared neck, designed for easy and controlled sample collection and transport. The flask is simple, yet designed to be reliable and durable, and at $109.99 for a pack of 50, let’s see if they are actually worth the cost.
I needed a reliable and inert container for collecting and transporting small, potentially volatile samples in the field. I’ve used plastic vials before, but I’ve found that some solvents can interact with the plastic, potentially skewing results or even compromising the sample. Glass, especially borosilicate, offers a far more stable and chemically resistant alternative.
Upon unboxing (or rather, carefully unpacking the 50 individual flasks), my initial impression was one of solid, functional design. The glass felt substantial, not flimsy, and the narrow mouth looked precisely machined. While they are rather unassuming, you can tell they are durable and useful.
I considered several other options, including screw-top glass vials and small Erlenmeyer flasks. I picked the Kimble/Kontes Flask Narrow Mouth 50ML CS12 26500B 50 because of the flared neck. I felt that the design offered a better balance of ease of filling and minimizing spillage during transport.
My first impression was cautiously optimistic. They looked the part, but the real test would be how they performed under pressure – literally and figuratively.
Real-World Testing: Putting Kimble/Kontes Flask Narrow Mouth 50ML CS12 26500B 50 to the Test
First Use Experience
My first use was during a water quality monitoring project at a remote trout stream. I needed to collect small samples of water for on-site analysis, then transport them back to the lab for further testing. The Kimble/Kontes Flask Narrow Mouth 50ML CS12 26500B 50 performed admirably in this setting.
The flared neck made it easy to fill the flasks directly from the stream, even in windy conditions, minimizing the risk of contamination. The narrow mouth also prevented significant spillage as I capped the flask with a rubber stopper.
The flask performed well despite a few drops of rain, and even held up when I dropped the box with all 50 flasks down a short embankment. Luckily, only two were broken.
Extended Use & Reliability
After several weeks of repeated use, the Kimble/Kontes Flask Narrow Mouth 50ML CS12 26500B 50 flasks have proven to be a reliable part of my field kit.
The borosilicate glass shows no signs of etching or degradation, even after repeated exposure to various solvents and acids. Cleaning is also a breeze: a simple rinse with soap and water is usually sufficient.
Compared to the plastic vials I used previously, these flasks offer a vastly superior level of chemical resistance and durability. I am finally able to collect samples in a reliable vessel.
Breaking Down the Features of Kimble/Kontes Flask Narrow Mouth 50ML CS12 26500B 50
Specifications
- Capacity: Each flask holds 50ML, ideal for small sample volumes. This is useful in instances where large samples are not available or needed.
- Material: Constructed from borosilicate glass, offering excellent chemical resistance and thermal stability. This allows it to withstand a wide range of chemicals and temperatures.
- Neck: Features a narrow mouth and a flared neck for easy filling and reduced spillage. The design of the neck allows for easy and safe pouring.
- CS12: Indicates a specific joint size, useful for compatibility with stoppers or other attachments. This is a standard size and ensures easy compatibility.
- 26500B: The Kimble/Kontes catalog number for easy identification and reordering. This ensures you always order the right flask.
These specifications are important because they directly impact the flask’s usability and suitability for specific applications. The borosilicate glass ensures sample integrity, while the flared neck and narrow mouth enhance handling and reduce waste.
Performance & Functionality
The Kimble/Kontes Flask Narrow Mouth 50ML CS12 26500B 50 performs its intended job exceptionally well: securely containing and transporting small liquid samples.
Its strength lies in its simplicity and the quality of materials used. A minor weakness is the lack of any graduations or markings for precise volume measurement.
The Kimble/Kontes Flask Narrow Mouth 50ML CS12 26500B 50 meets and exceeds expectations. The flasks are well built and will last.
Design & Ergonomics
The flask features a classic round-bottom design, optimized for even heating and easy swirling.
The flared neck makes pouring easy, while the narrow mouth minimizes evaporation. Despite its simplicity, the design is well-thought-out and functional.
Durability & Maintenance
The borosilicate glass construction provides excellent durability and resistance to chemical attack.
With proper care, these flasks should last for years, if not decades. Cleaning is simple; soap, water, and a bottle brush are all that is needed.
Accessories and Customization Options
The Kimble/Kontes Flask Narrow Mouth 50ML CS12 26500B 50 doesn’t come with any accessories. However, you may want stoppers, caps, or labels for marking samples.
Standard CS12 stoppers fit perfectly and are readily available from various suppliers. The flasks are fully customizable to label to ensure samples are correctly identified.
Pros and Cons of Kimble/Kontes Flask Narrow Mouth 50ML CS12 26500B 50
Pros
- Chemically Inert: Borosilicate glass ensures no leaching or contamination of samples. This is essential for accurate and reliable results.
- Durable: Robust glass construction can withstand repeated use and cleaning. Provides long-term value and reduces the need for replacements.
- Easy to Clean: Smooth glass surface is easy to sanitize and decontaminate. Saves time and ensures sample integrity.
- Flared Neck: Simplifies filling and pouring, minimizing spills and waste. Improved handling for ease of use.
- Standard Size: CS12 joint ensures compatibility with readily available stoppers and attachments. Provides versatility for different applications.
Cons
- Fragile: Glass is inherently breakable, requiring careful handling and storage.
- No Volume Markings: Lacks graduations for precise volume measurement.
Who Should Buy Kimble/Kontes Flask Narrow Mouth 50ML CS12 26500B 50?
The Kimble/Kontes Flask Narrow Mouth 50ML CS12 26500B 50 is perfect for: chemists, biologists, environmental scientists, or anyone who needs to collect, store, or transport small, sensitive liquid samples.
Anyone who primarily works with non-corrosive materials or requires precise volume measurements should consider alternative containers.
Must-have accessories include properly sized stoppers and chemical-resistant labels.
Conclusion on Kimble/Kontes Flask Narrow Mouth 50ML CS12 26500B 50
The Kimble/Kontes Flask Narrow Mouth 50ML CS12 26500B 50 is a simple yet effective tool for anyone working with small liquid samples.
The $109.99 price tag for a pack of 50 may seem steep, but the durability and chemical resistance of the borosilicate glass justify the cost for professional applications.
I would definitely recommend these flasks to anyone needing a reliable and inert container for sample collection and transport. Invest in quality glass and ensure the integrity of your samples!