Everything You Need to Know About the Kimble/Kontes KIMAX Brand Burets, Class B, Straight Bore Stopcock 17026F 25 Burets With Ptfe Stopcock, Case
The Kimble/Kontes KIMAX Brand Burets, Class B, Straight Bore Stopcock 17026F 25 Burets With Ptfe Stopcock, Case represents a standard in volumetric analysis, a cornerstone of any serious lab or quality control environment. From titrations in environmental science to quality checks in food processing, accurate dispensing is paramount. Kimble/Kontes, a respected name in labware, delivers this precision in a convenient, ready-to-deploy package.
For years, I’ve relied on burets for various applications, but inconsistent stopcocks and fragile glass have often been a source of frustration. I needed a solution that offered reliable performance, durability, and value, especially considering the high volume of analyses we perform. This set of Kimble/Kontes burets promised exactly that.
The case arrived well-packaged, and immediately I was impressed by the consistent quality of the glasswork. The burets felt substantial, not flimsy, and the PTFE stopcocks moved smoothly. Compared to cheaper, no-name burets I’ve used, the Kimble/Kontes difference in build quality was immediately apparent.
I initially chose this Kimble/Kontes set over individual burets from other brands, prioritizing the convenience of a complete, matched set and the brand’s reputation. My first impression was one of cautious optimism – relieved that a set of burets looked so well constructed and hoping they’d hold up to rigorous daily use.
Real-World Testing: Putting Kimble/Kontes KIMAX Brand Burets, Class B, Straight Bore Stopcock 17026F 25 Burets With Ptfe Stopcock, Case to the Test
First Use Experience
I tested these burets in our environmental lab, primarily for performing alkalinity titrations on water samples. The consistent flow rate and precise dispensing were immediately noticeable. I didn’t need to spend time adjusting or working around sticky stopcocks, a common issue with lesser burets.
Even with slightly turbid samples, the clear glass allowed for easy meniscus reading, which helped minimize parallax errors. Initial use proved seamless; the burets were ready to go right out of the box, and my titration results were more consistent than before.
Extended Use & Reliability
After several months of daily use, the Kimble/Kontes burets have held up remarkably well. The glass remains clear, and the PTFE stopcocks continue to operate smoothly without any leaks or sticking. The black ceramic enamel graduations are also surprisingly durable, showing no signs of fading or scratching, even after repeated cleaning.
The burets show no significant wear and tear, even with frequent handling and exposure to various chemicals. Regular cleaning with mild detergent and a buret brush is all it takes to keep them in top condition. They consistently outperform the older glass stopcock burets we previously used.
Breaking Down the Features of Kimble/Kontes KIMAX Brand Burets, Class B, Straight Bore Stopcock 17026F 25 Burets With Ptfe Stopcock, Case
Specifications
- The Kimble/Kontes KIMAX Brand Burets, Class B, Straight Bore Stopcock boast a 25 mL capacity. This is a versatile volume suitable for a wide range of titrations and dispensing tasks.
- They have 0.1 mL graduations, allowing for precise measurements. The fine graduations are essential for accurate titrations.
- The tolerance is ±0.06 mL, ensuring accuracy within Class B standards. This tolerance is adequate for most routine laboratory applications.
- The burets are 571 mm in length, offering a comfortable working height. The length allows for easy handling and reading of the meniscus.
- Each buret comes with a 13 mm KIM-KAP dust cap to prevent contamination. The dust cap is a simple but effective addition for maintaining cleanliness.
- The straight bore PTFE stopcock provides excellent chemical resistance and smooth, leak-free operation. This is a crucial feature for long-term reliability.
Performance & Functionality
The Kimble/Kontes KIMAX Brand Burets perform admirably, providing accurate and consistent dispensing. The smooth-turning PTFE stopcocks allow for precise control over the flow rate, crucial for accurate titrations. The Class B tolerance is adequate for most routine laboratory work, delivering reliable results.
A potential weakness is that Class B burets are less accurate than Class A, so extremely precise work may require a higher grade of buret. Overall, the performance and functionality meet expectations for a reliable, general-purpose laboratory buret.
Design & Ergonomics
The Kimble/Kontes burets are well-designed and comfortable to use. The glass is clear and uniform, allowing for easy meniscus reading. The PTFE stopcocks are easy to grip and turn, even with gloved hands.
The design is straightforward and functional, with no unnecessary frills. The focus is clearly on usability and accuracy.
Durability & Maintenance
The borosilicate glass construction ensures excellent durability and chemical resistance. The PTFE stopcocks are also highly resistant to chemical attack and wear. With proper care and cleaning, these burets should last for many years.
Maintenance is simple, requiring only regular cleaning with a mild detergent and a buret brush. The PTFE stopcocks do not require lubrication, further simplifying maintenance.
Accessories and Customization Options
This Kimble/Kontes set includes 25 burets, each with a PTFE stopcock and a KIM-KAP dust cap. No further accessories are included, nor are they generally needed. The burets are designed for standard titration setups and are compatible with most laboratory stands and clamps.
These burets are compatible with standard buret stands and clamps, providing flexibility in setting up your titration apparatus. While not specifically customizable, the core function is well-executed, making additional modifications unnecessary.
Pros and Cons of Kimble/Kontes KIMAX Brand Burets, Class B, Straight Bore Stopcock 17026F 25 Burets With Ptfe Stopcock, Case
Pros
- Reliable PTFE stopcocks provide smooth, leak-free operation.
- Durable borosilicate glass construction ensures long life.
- Clear graduations in durable black ceramic enamel for easy reading.
- Convenient case of 25 burets is ideal for high-volume labs.
- Class B accuracy is sufficient for most routine applications.
Cons
- Class B accuracy may not be sufficient for extremely precise analyses.
- No individual calibration certificates included.
Who Should Buy Kimble/Kontes KIMAX Brand Burets, Class B, Straight Bore Stopcock 17026F 25 Burets With Ptfe Stopcock, Case?
This Kimble/Kontes KIMAX Brand Burets set is perfect for: environmental testing labs, food and beverage quality control labs, educational institutions performing chemistry experiments, and any laboratory requiring accurate and reliable volumetric dispensing. These burets are ideal for routine titrations and other applications where Class B accuracy is sufficient.
This product might not be ideal for labs requiring extreme accuracy or those performing highly specialized analyses that demand Class A glassware. For such applications, individually calibrated Class A burets would be a better choice. A must-have accessory would be a good quality buret stand.
Conclusion on Kimble/Kontes KIMAX Brand Burets, Class B, Straight Bore Stopcock 17026F 25 Burets With Ptfe Stopcock, Case
The Kimble/Kontes KIMAX Brand Burets, Class B, Straight Bore Stopcock 17026F 25 Burets With Ptfe Stopcock, Case offers a solid blend of quality, accuracy, and value. The PTFE stopcocks are a standout feature, providing reliable, leak-free performance that significantly improves the user experience. The durable borosilicate glass construction ensures these burets will withstand the rigors of daily use.
The price is justified by the quality and convenience of a complete, matched set of 25 burets. I would definitely recommend these burets to any lab requiring reliable and accurate volumetric dispensing for routine applications. Upgrade your lab’s capabilities and eliminate titration frustrations – invest in the Kimble/Kontes KIMAX Brand Burets today.