Kimble/Kontes Flask Narrow Mouth 50ML CS12 26500R 50 Review

Testing the Kimble/Kontes Flask Narrow Mouth 50ML CS12 26500R 50: What You Need to Know

The Kimble/Kontes Flask Narrow Mouth 50ML CS12 26500R 50 is a seemingly simple piece of laboratory equipment, but its precision and reliability are paramount in various applications. From sample preparation to titration, this flask is designed to provide accurate measurements and secure storage. Its narrow mouth is key for controlled pouring and minimizing evaporation.

My journey to acquiring the Kimble/Kontes Flask Narrow Mouth 50ML CS12 26500R 50 started during a recent project involving water quality testing in remote environments. I needed a reliable and compact vessel for collecting and preserving water samples before analysis. The need for a leak-proof, easily transportable, and chemically inert container was critical, and the promise of Kimble/Kontes quality seemed like a good fit.

Upon unboxing, the flask felt surprisingly robust for its size. The glass was thick and clear, suggesting a good level of durability. The narrow mouth was perfectly formed, and the CS12 joint appeared precisely ground. This detail promised an airtight seal when used with compatible stoppers or closures.

Compared to generic lab flasks I’ve used in the past, the Kimble/Kontes flask immediately stood out due to its consistent wall thickness and the uniformity of the glass. I considered using smaller sample bottles, but their fragility and potential for contamination were significant drawbacks. I also looked at larger flasks, but their added weight and bulk made them unsuitable for prolonged carry in the field.

My first impression was positive; the Kimble/Kontes Flask Narrow Mouth 50ML CS12 26500R 50 felt like a quality instrument, not just a container. I was eager to test its performance and durability in the demanding conditions of my field research.


Real-World Testing: Putting Kimble/Kontes Flask Narrow Mouth 50ML CS12 26500R 50 to the Test

First Use Experience

I tested the Kimble/Kontes Flask Narrow Mouth 50ML CS12 26500R 50 during a week-long expedition into the Cascade Mountains, collecting water samples from various streams and lakes. The flask was primarily used to store samples intended for subsequent analysis of pH, dissolved oxygen, and heavy metal content. This required the flask to maintain sample integrity under changing temperature and altitude conditions.

The flask performed admirably in diverse conditions, from sunny 70-degree days to chilly, damp evenings. The narrow mouth proved beneficial, minimizing spillage while pouring samples into the flask on uneven terrain. The flask’s inert glass also prevented any chemical leaching into the samples, which is crucial for accurate water analysis.

The Kimble/Kontes Flask Narrow Mouth 50ML CS12 26500R 50 was easy to use, requiring no special handling or preparation. I simply rinsed it with distilled water before each sample collection. The clear glass allowed for easy visual inspection of the samples, which was useful for identifying any potential sediment or discoloration.

One slight issue was the flask’s smooth exterior, which made it slippery when wet. This required extra caution when handling it in wet environments.

Extended Use & Reliability

After several months of consistent use, the Kimble/Kontes Flask Narrow Mouth 50ML CS12 26500R 50 has proven its reliability. There are no signs of degradation or chemical attack on the glass, despite repeated exposure to various chemicals and solvents.

The flask has proven remarkably durable, resisting cracks and chips even when subjected to accidental bumps and knocks inside my pack. Cleaning and maintenance are straightforward, requiring only soap and water, or occasional cleaning with laboratory-grade detergents for stubborn residues. Its simple design makes it easy to access and clean every corner of the flask.

Compared to previous experiences with less robust flasks, the Kimble/Kontes Flask Narrow Mouth 50ML CS12 26500R 50 has far exceeded my expectations. Its reliability and durability have made it an indispensable tool in my field research.

Breaking Down the Features of Kimble/Kontes Flask Narrow Mouth 50ML CS12 26500R 50

Specifications

  • Capacity: 50ML, ideal for small sample volumes.
  • Material: KIMAX borosilicate glass, offering excellent chemical resistance and thermal stability. This ensures sample integrity.
  • Neck Finish: Narrow Mouth with CS12 joint, facilitating secure closure and controlled pouring. The CS12 joint size allows for compatibility with a range of stoppers and fittings.
  • Graduation Range: 20 to 50mL, offering a reference for approximate volume measurements.
  • Graduation Interval: 10mL subdivisions, enabling basic visual volume estimation. While not a precision measurement device, these graduations are handy for quick checks.
  • Rubber Stopper Size: 1, indicating the correct stopper size for a tight seal.
  • Approximate Dimensions: 50mm (widest diameter) x 78mm (height), making it compact and easy to handle.
  • Color: Raging Red (referring to markings), for easy identification.
  • Manufacturer: Kimble/Kontes, a reputable brand known for high-quality laboratory glassware.

These specifications are crucial because they ensure the flask’s reliability, durability, and suitability for a wide range of laboratory and field applications. The borosilicate glass guarantees chemical inertness, which is essential for maintaining the integrity of sensitive samples. The narrow mouth and CS12 joint enable secure closure, preventing contamination and evaporation.

Performance & Functionality

The Kimble/Kontes Flask Narrow Mouth 50ML CS12 26500R 50 excels at its primary job: storing and transporting small volumes of liquid securely. It provides a reliable container for samples in various settings.

Its strength lies in its chemical resistance and secure closure, critical for preventing contamination or loss of volatile compounds. The narrow mouth design is extremely effective at controlling pouring and minimizing the risk of spills. One area for improvement might be the addition of a textured surface for better grip, particularly when handling with wet or gloved hands.

Overall, the flask meets and exceeds expectations for a small-volume laboratory container. It delivers on its promise of secure, reliable, and contamination-free sample storage.

Design & Ergonomics

The flask boasts a simple yet effective design. Kimble/Kontes focused on functionality over aesthetics.

The borosilicate glass gives it a robust feel, while its compact size and light weight make it easy to handle and transport. There is virtually no learning curve because its function is very straightforward.

Durability & Maintenance

The borosilicate glass construction of the Kimble/Kontes Flask Narrow Mouth 50ML CS12 26500R 50 suggests that it will last for many years with proper care. It is resistant to thermal shock and chemical attack, extending its lifespan.

Maintenance involves simple cleaning with soap and water, or laboratory-grade detergents as needed. The flask’s simple design facilitates easy cleaning, reducing the risk of contamination.

Accessories and Customization Options

The Kimble/Kontes Flask Narrow Mouth 50ML CS12 26500R 50 doesn’t come with many accessories, as it’s a basic laboratory item. The most common accessory is a compatible stopper or closure for the CS12 joint, used to create an airtight seal.

While not customizable in the traditional sense, the flask’s compatibility with various stoppers and closures allows for some degree of personalization to suit specific applications. For instance, a septum stopper could be used for syringe access, or a screw-cap closure for enhanced security. The CS12 joint size is fairly standard, so accessories from other brands that adhere to this standard should work.

Pros and Cons of Kimble/Kontes Flask Narrow Mouth 50ML CS12 26500R 50

Pros

  • Excellent Chemical Resistance: Made from borosilicate glass, ensuring compatibility with a wide range of chemicals and solvents.
  • Secure Closure: Narrow mouth and CS12 joint enable a tight seal, preventing contamination and evaporation.
  • Durable Construction: Thick glass walls provide good impact resistance.
  • Easy to Clean: Simple design allows for thorough cleaning and sterilization.
  • Compact Size: Ideal for small sample volumes and easy transport.

Cons

  • Smooth exterior can be slippery when wet.
  • Graduations are only approximate and not suitable for precision measurements.


Who Should Buy Kimble/Kontes Flask Narrow Mouth 50ML CS12 26500R 50?

  • Perfect for: Chemists, biologists, environmental scientists, lab technicians, and anyone needing a reliable small-volume container for liquid samples. Field researchers collecting water or soil samples would also find this flask indispensable.
  • Who should skip this product? Those needing precise volume measurements should opt for calibrated volumetric flasks. Individuals requiring large-volume storage will find the 50ML capacity too limiting.
  • Must-have accessories or modifications? A selection of appropriate CS12 stoppers or closures is essential for sealing the flask. Labels for sample identification are also highly recommended.

Conclusion on Kimble/Kontes Flask Narrow Mouth 50ML CS12 26500R 50

The Kimble/Kontes Flask Narrow Mouth 50ML CS12 26500R 50 is a simple yet essential piece of laboratory equipment. Its robust construction, chemical resistance, and secure closure make it a reliable choice for storing and transporting small volumes of liquid.

The price of $109.99 might seem high for a single small flask. However, the superior quality and durability of the Kimble/Kontes product justify the investment, especially for applications where sample integrity is critical. The Kimble/Kontes Flask Narrow Mouth 50ML CS12 26500R 50 is sold as a case of 50, but its quality still make the case a reasonable value given its performance.

I would definitely recommend the Kimble/Kontes Flask Narrow Mouth 50ML CS12 26500R 50 to anyone seeking a reliable and durable small-volume container. Don’t compromise on quality when it comes to your samples; invest in the Kimble/Kontes flask and ensure the integrity of your work.

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