Kimble/Kontes KIMAX Centrifuge Tubes with ST Glass Stopper, Conical-Bottom, Graduated, Kimble Chase 45153 50 Review

Is the Kimble/Kontes KIMAX Centrifuge Tubes with ST Glass Stopper, Conical-Bottom, Graduated, Kimble Chase 45153 50 Right for You?

The Kimble/Kontes KIMAX Centrifuge Tubes with ST Glass Stopper, Conical-Bottom, Graduated, Kimble Chase 45153 50 from Kimble Chase are not your typical piece of outdoor or tactical gear. These graduated, conical-bottom centrifuge tubes, complete with solid glass stoppers, are more at home in a lab than on a mountain. While seemingly out of place in my usual field of expertise, I’ve found that a deep understanding of material science and precise measurement can be unexpectedly valuable in survival situations.

My interest in these tubes stemmed from a need for precise liquid measurement and secure containment in a remote, off-grid context. I needed a way to measure precise quantities of water for purification, accurately mix electrolytes, and securely store potentially hazardous liquids like concentrated iodine solutions, all while ensuring the container itself wouldn’t leach chemicals or degrade under harsh conditions. I was tired of relying on flimsy plastic containers that cracked, leaked, or reacted with their contents.

Upon unboxing, my initial impression was one of robust quality. The KIMAX borosilicate glass felt thick and durable, far superior to the thin glass of typical laboratory glassware. The ground glass stopper provided a reassuringly tight seal, and the clear graduation markings promised accurate measurement.

Compared to plastic centrifuge tubes, which are often disposable and prone to cracking in extreme temperatures, the Kimble/Kontes KIMAX Centrifuge Tubes with ST Glass Stopper, Conical-Bottom, Graduated, Kimble Chase 45153 50 offered a level of durability and chemical resistance I couldn’t find elsewhere. Similarly, compared to standard beakers or flasks, the conical bottom and graduations allowed for precise volume determination and easy collection of settled solids. I chose this Kimble Chase model specifically for its 50mL capacity, which suited my needs for both small and relatively larger liquid volumes.

My first impression was cautiously optimistic. While the price tag of $999.99 initially seemed exorbitant, the potential for reliable, long-term use and the elimination of concerns about chemical leaching made it a worthwhile investment, if it held up to field testing.

Real-World Testing: Putting Kimble/Kontes KIMAX Centrifuge Tubes with ST Glass Stopper, Conical-Bottom, Graduated, Kimble Chase 45153 50 to the Test

First Use Experience

I initially tested the Kimble/Kontes KIMAX Centrifuge Tubes with ST Glass Stopper, Conical-Bottom, Graduated, Kimble Chase 45153 50 during a week-long wilderness survival skills course in the high desert. The tubes were used to measure water purification chemicals (chlorine dioxide), electrolyte solutions for rehydration, and to collect sediment from questionable water sources for preliminary assessment. The dry, dusty conditions of the desert environment presented a good initial test of the tube’s sealing capabilities.

The glass tubes proved surprisingly easy to use, even with gloved hands. The graduation markings were clear and easy to read, and the conical bottom facilitated the collection of even small amounts of sediment. The stopper provided a secure seal, preventing leaks even when the tube was inverted, although the product description clearly cautions against centrifuging with the stopper in place – a point I heeded.

My initial concern was the potential for breakage, but the thick KIMAX glass proved remarkably resilient. I did find that the glass stopper could stick quite firmly if exposed to certain solutions that dried around the joint, requiring a gentle twisting motion to remove.

Extended Use & Reliability

After several months of use, including multiple camping trips and use as part of my emergency preparedness kit, the Kimble/Kontes KIMAX Centrifuge Tubes with ST Glass Stopper, Conical-Bottom, Graduated, Kimble Chase 45153 50 has held up remarkably well. There are no signs of wear and tear on the glass itself, and the graduations remain clear and legible. The glass stoppers, while occasionally requiring a bit of coaxing to remove, continue to provide a tight seal.

Cleaning is straightforward. A simple rinse with water is usually sufficient, although occasional scrubbing with a bottle brush is needed to remove stubborn residues. Compared to the plastic tubes I previously used, these Kimble Chase tubes have shown significantly greater resistance to staining and degradation from repeated exposure to harsh chemicals and temperature fluctuations.

My previous experiences with plastic containers were fraught with concerns about durability, chemical compatibility, and environmental impact. These glass centrifuge tubes outperform plastic options in every aspect, offering a superior level of performance, reliability, and peace of mind, justifying the higher initial cost.

Breaking Down the Features of Kimble/Kontes KIMAX Centrifuge Tubes with ST Glass Stopper, Conical-Bottom, Graduated, Kimble Chase 45153 50

Specifications

The Kimble/Kontes KIMAX Centrifuge Tubes with ST Glass Stopper, Conical-Bottom, Graduated, Kimble Chase 45153 50 boasts the following specifications:

• Volume: 50 mL, providing ample capacity for a range of liquid measurement and storage needs.
• Stopper Size: 19, ensuring a secure and leak-proof seal.
• Dimensions: O.D. x L, mm: 29 x 148, making the tubes compact enough for easy storage and transport, yet large enough for practical use.
• Kimble Chase No.: 45153 50, ensuring easy identification and reordering.

These specifications are crucial for several reasons. The 50mL volume is ideal for accurately measuring liquids in the field, while the secure stopper ensures safe transport and storage. The dimensions allow for easy packing in a medical or survival kit without taking up excessive space. The KIMAX glass construction guarantees chemical inertness, meaning the tubes won’t react with or leach contaminants into the stored liquids.

Performance & Functionality

The Kimble/Kontes KIMAX Centrifuge Tubes with ST Glass Stopper, Conical-Bottom, Graduated, Kimble Chase 45153 50 performs its job exceptionally well. It accurately measures liquids, securely stores them, and withstands the rigors of field use. The conical bottom allows for efficient collection of solids, while the graduated markings provide precise volume readings.

The tube’s primary strength lies in its durability and chemical resistance. However, the glass stopper can sometimes be difficult to remove, particularly if exposed to drying solutions. This could be improved with a slightly wider stopper head for a better grip. Overall, the tube meets and exceeds my expectations for a reliable and versatile liquid handling tool.

Design & Ergonomics

The Kimble/Kontes KIMAX Centrifuge Tubes with ST Glass Stopper, Conical-Bottom, Graduated, Kimble Chase 45153 50 features a simple but effective design. The KIMAX borosilicate glass construction feels solid and durable, providing confidence in its longevity. The smooth surface is easy to clean, and the conical bottom facilitates efficient sediment collection.

The tubes are user-friendly, with clear graduation markings that are easy to read even in low-light conditions. There’s no learning curve involved; their function is immediately apparent.

Durability & Maintenance

These Kimble Chase tubes are built to last. The thick KIMAX glass is resistant to breakage, and the chemical inertness ensures they won’t degrade from exposure to harsh substances. Maintenance is simple: rinse and scrub as needed.

With proper care, these centrifuge tubes should provide years of reliable service, making them a worthwhile investment.

Accessories and Customization Options

The Kimble/Kontes KIMAX Centrifuge Tubes with ST Glass Stopper, Conical-Bottom, Graduated, Kimble Chase 45153 50 comes standard with a ground glass stopper. There are limited customization options. However, compatible accessories could include silicone sleeves for added impact protection or custom-made carrying cases for secure transport.

The tubes are compatible with standard laboratory racks and stands, making them easy to integrate into existing setups.

Pros and Cons of Kimble/Kontes KIMAX Centrifuge Tubes with ST Glass Stopper, Conical-Bottom, Graduated, Kimble Chase 45153 50