Kimble/Kontes KIMAX Brand Burets, Class B, Straight Bore Stopcock 17026F 10 Burets With Ptfe Stopcock, Case Review

Field Test Review of the Kimble/Kontes KIMAX Brand Burets, Class B, Straight Bore Stopcock 17026F 10 Burets With Ptfe Stopcock, Case

The Kimble/Kontes KIMAX Brand Burets, Class B, Straight Bore Stopcock 17026F 10 Burets With Ptfe Stopcock, Case represent a critical tool for precise liquid dispensing in laboratory settings. Manufactured by Kimble/Kontes, a well-respected name in scientific glassware, these burets are designed for accurate titrations and other volumetric analyses. The inclusion of a PTFE stopcock is a major advantage, eliminating the need for lubrication and reducing the risk of stopcock freezing.

As an outdoor and tactical gear specialist, my initial encounter with burets wasn’t in a lab, but in understanding the science behind water purification and chemical testing kits. Understanding water quality parameters often requires field titrations, making accurate burets a necessity, even if adapted for portable use. This pursuit led me to seek a reliable and durable set of burets, and the Kimble/Kontes name kept surfacing in my research.

Upon unboxing, the first thing that struck me was the care in packaging; each buret was individually protected. The glass felt substantial, reassuring of its quality, though I immediately knew I’d need to adapt the packaging for field transport. These are laboratory instruments, not designed for bouncing around in a rucksack! The PTFE stopcocks turned smoothly, promising accurate and consistent flow control.

I considered other brands of burets, some with automatic zeroing features, but they were significantly more expensive. Cheaper options existed, but reports of inaccurate graduations and fragile glass steered me towards the Kimble/Kontes reputation for precision and durability. The decision came down to balancing cost and reliability, and Kimble/Kontes seemed to offer the best of both worlds.

My first impression was cautiously optimistic; they looked like quality instruments, but lab glassware needs to perform to earn its keep. The true test would be in the accuracy and consistency of the titrations. I was excited to adapt and apply them to field-based analytical methods, something beyond their designed laboratory environment.

Real-World Testing: Putting Kimble/Kontes KIMAX Brand Burets, Class B, Straight Bore Stopcock 17026F 10 Burets With Ptfe Stopcock, Case to the Test

First Use Experience

My initial testing involved adapting these burets for basic water quality analysis during a wilderness survival skills course. I set up a makeshift lab table in a sheltered area and used them to perform alkalinity and hardness tests on various water sources. The consistent and controlled dispensing was immediately apparent, even in the less-than-ideal outdoor setting.

While the burets themselves performed well, the outdoor conditions presented challenges. Wind affected readings, and temperature fluctuations impacted reagent volumes. I needed to create a windshield and insulate the reagents to minimize these factors. The graduations were easy to read, even in diffuse light, but a headlamp was necessary for accurate readings in the evening.

The burets were straightforward to use, requiring no special expertise, but adapting laboratory techniques to the field took practice. I learned the importance of leveling the buret stand (essential, but often overlooked when setting up a lab on uneven ground!) and properly cleaning the burets after each use to prevent contamination. Initially, I underestimated the importance of stabilizing the burets, resulting in a few spills, but I quickly improved my setup.

Extended Use & Reliability

After several weeks of intermittent use, the Kimble/Kontes burets have proven to be remarkably reliable. There have been no issues with the glass cracking or the stopcocks leaking. The PTFE stopcocks remain smooth and consistent, a significant improvement over traditional glass stopcocks that require constant greasing.

Despite the inevitable bumps and jostles of transport, the burets have shown no signs of significant wear and tear. I’ve been careful to pad them adequately during transport, but the glass seems more robust than I initially expected. Regular cleaning with distilled water and a mild detergent has kept them in excellent condition.

Compared to using less precise methods for field analysis (like drop-count kits), the Kimble/Kontes burets offer a significant improvement in accuracy and repeatability. The results are consistently within the expected range, providing confidence in the water quality assessments. They drastically outperformed low-cost plastic alternatives, which suffered from inconsistent dispensing and difficult-to-read markings.

Breaking Down the Features of Kimble/Kontes KIMAX Brand Burets, Class B, Straight Bore Stopcock 17026F 10 Burets With Ptfe Stopcock, Case

Specifications

• Capacity: 10 mL, ideal for micro-titrations and situations where reagent conservation is crucial. This allows for precise control when dealing with expensive or limited-quantity reagents.
• Graduations: 0.05 mL increments, providing a high degree of resolution for accurate readings. This level of detail enables precise measurements, crucial for sensitive analyses.
• Tolerance: ±0.04 mL, indicating the acceptable margin of error for each measurement. The tight tolerance assures minimal deviation from expected volumes, essential for reliable quantitative analysis.
• Length: 518 mm, a standard length for a 10 mL buret, providing a comfortable working height. The length is well-suited for easy manipulation and readability, ensuring comfort during extended use.
• Stopcock: Straight bore PTFE (Polytetrafluoroethylene) stopcock, eliminating the need for lubrication and preventing freezing. This feature significantly reduces maintenance and ensures consistent flow control.
• Scale: Durable black ceramic enamel, resistant to chemicals and wear. The durable scale remains easily readable, even after repeated exposure to corrosive substances.
• Class: Class B, meeting ASTM Specification E287 requirements for volumetric glassware. Class B glassware is suitable for general laboratory use where high accuracy isn’t paramount, offering a balance of performance and cost.
• Cap Size: 13 mm, compatible with standard dust caps to protect the buret from contamination. The dust cap helps maintain the integrity of the buret and the purity of the reagents.
• Kimble* No.: 17026F 10, uniquely identifying the product within the Kimble/Kontes catalog. This facilitates easy reordering and referencing of specifications.
• Unit: Case of 10 burets, providing a cost-effective solution for laboratories needing multiple burets. Having a case ensures a ready supply, minimizing downtime and ensuring consistency across experiments.

Performance & Functionality

The Kimble/Kontes KIMAX Brand Burets, Class B, Straight Bore Stopcock 17026F 10 Burets With Ptfe Stopcock, Case performs its primary function, precise liquid dispensing, exceptionally well. The PTFE stopcock allows for fine control over the flow rate, crucial for accurate titrations. The clear graduations and the narrow bore of the buret contribute to minimal parallax error.

The main strength lies in the reliability and consistency of the measurements. The burets deliver accurate volumes every time, provided they are used correctly and calibrated regularly. A minor weakness is the Class B designation; while suitable for many applications, extremely demanding quantitative analyses may require Class A burets with tighter tolerances.

These burets meet my expectations for laboratory glassware from a reputable manufacturer like Kimble/Kontes. They offer a reliable and accurate method for liquid dispensing, and the PTFE stopcock is a significant upgrade over traditional glass stopcocks. They have proven to be invaluable in field applications, pushing beyond their intended laboratory setting.

Design & Ergonomics

The Kimble/Kontes KIMAX Brand Burets, Class B, Straight Bore Stopcock 17026F 10 Burets With Ptfe Stopcock, Case features a simple and functional design. The borosilicate glass construction is durable and chemical-resistant, while remaining relatively lightweight for their size. The burets are comfortable to hold and manipulate, though prolonged use may require a stand for stability.

These burets are exceptionally user-friendly. The graduations are clear and easy to read, and the PTFE stopcock provides smooth and precise flow control. There’s virtually no learning curve; anyone with basic chemistry knowledge can use these burets effectively.

Durability & Maintenance

These burets should last for many years with proper care. The borosilicate glass is resistant to thermal shock and chemical corrosion, but it is still glass and must be handled with care to avoid breakage. Regular cleaning with distilled water and a mild detergent is sufficient to maintain their accuracy and performance.

Maintaining these burets is remarkably simple. The PTFE stopcock eliminates the need for greasing, and the glass surface is easy to clean. In the event of contamination, the burets can be autoclaved for sterilization, although I have not found this necessary in my field applications.

Accessories and Customization Options

The Kimble/Kontes KIMAX Brand Burets, Class B, Straight Bore Stopcock 17026F 10 Burets With Ptfe Stopcock, Case comes with a KIM-KAP* dust cap to prevent contamination. This is a small but useful accessory.

While there aren’t many customization options for burets, they are compatible with various accessories, such as buret stands, titration flasks, and reagent bottles from Kimble/Kontes and other brands. The standard size of the buret allows it to fit into most universal buret clamps, giving some flexibility. The ability to integrate with universal stands makes them adaptable to various laboratory setups.

Pros and Cons of Kimble/Kontes KIMAX Brand Burets, Class B, Straight Bore Stopcock 17026F 10 Burets With Ptfe Stopcock, Case

Who Should Buy Kimble/Kontes KIMAX Brand Burets, Class B, Straight Bore Stopcock 17026F 10 Burets With Ptfe Stopcock, Case?

Perfect for: Laboratories conducting routine titrations, educational institutions teaching volumetric analysis, and environmental scientists performing field water quality testing. They are also well-suited to amateur chemists and hobbyists needing accurate liquid dispensing.

Who should skip this product? Laboratories requiring the highest level of accuracy for extremely sensitive analyses. These should instead opt for Class A burets with tighter tolerances.

Must-have accessories or modifications? A good quality buret stand, titration flasks, and appropriate reagents for the intended analyses. For field use, a sturdy carrying case and a windshield are essential.

Conclusion on Kimble/Kontes KIMAX Brand Burets, Class B, Straight Bore Stopcock 17026F 10 Burets With Ptfe Stopcock, Case

The Kimble/Kontes KIMAX Brand Burets, Class B, Straight Bore Stopcock 17026F 10 Burets With Ptfe Stopcock, Case are a reliable and accurate set of burets suitable for a wide range of applications. The PTFE stopcock is a significant advantage, and the durable construction ensures a long lifespan with proper care. The value proposition is excellent, offering a cost-effective solution for laboratories needing multiple burets.

The price is definitely justified by the quality and performance of these burets. They offer a level of accuracy and consistency that cheaper alternatives simply cannot match.

I would absolutely recommend the Kimble/Kontes KIMAX Brand Burets, Class B, Straight Bore Stopcock 17026F 10 Burets With Ptfe Stopcock, Case to anyone in need of reliable and accurate liquid dispensing. Whether you’re a seasoned chemist or a student learning the basics, these burets will serve you well. Invest in precision and bring accuracy to your scientific endeavors!