Let’s Dive into Kimble/Kontes KIMAX Brand Burets, Class B, Straight Bore Stopcock 17026F 100 Burets With Ptfe Stopcock, Case
The Kimble/Kontes KIMAX Brand Burets, Class B, Straight Bore Stopcock 17026F 100 Burets With Ptfe Stopcock, Case are a workhorse item in any lab requiring precise liquid dispensing. These aren’t your fancy, individually calibrated, ultra-high accuracy burets; they’re the reliable, bulk-purchase option for general chemistry needs. Coming from Kimble/Kontes, a name synonymous with quality glassware, they promise a blend of affordability and dependability, something crucial when you’re stocking an entire lab.
My journey to these burets began, predictably, with a budget crunch and a need for a high volume of dispensing tools. We were scaling up a water quality testing lab and faced the daunting task of equipping multiple workstations for various titrations. The alternative was to buy smaller quantities of high-end burets, which was simply not financially viable for the scale we envisioned.
The case of 100 burets arrives well-packaged, with each buret individually separated to prevent breakage. Upon unboxing, I was immediately impressed by the uniformity of the glassware and the smooth action of the PTFE stopcocks. The straight bore stopcock design immediately signaled ease of use and simplified cleaning.
Compared to higher-end brands offering individual Class A certified burets, these Kimble/Kontes Class B burets prioritize quantity and affordability over extreme precision. We also considered purchasing several automatic titrators to replace the burets. Ultimately, the low cost and simple construction of the Kimble/Kontes offering won us over.
My first impression was relief. The burets felt robust enough for daily lab use, and the PTFE stopcocks promised to eliminate the frustrating leaks and seizing associated with older glass stopcocks. My initial excitement stemmed from knowing we had found a solution that would allow us to equip our lab without breaking the bank.
Real-World Testing: Putting Kimble/Kontes KIMAX Brand Burets, Class B, Straight Bore Stopcock 17026F 100 Burets With Ptfe Stopcock, Case to the Test
First Use Experience
We immediately deployed these Kimble/Kontes burets across our water quality testing stations, focusing on alkalinity, hardness, and chlorine residual titrations. The lab environment is demanding, with constant exposure to various chemicals and rigorous daily use. The burets were used by technicians with varying levels of experience, so ease of use was paramount.
The PTFE stopcocks proved invaluable in our daily operations. They provided smooth and consistent flow control, even with frequent use, minimizing the risk of over-titration and wasted reagents. Cleaning was straightforward, requiring only a quick rinse with distilled water, a welcome contrast to the meticulous cleaning required for greased glass stopcocks.
The burets performed admirably from the start. No noticeable issues arose, and the graduations were clear and easy to read, allowing for quick and accurate dispensing. The main thing that took getting used to was the slightly wider bore of the straight bore stopcock when compared to the more precise burets.
Extended Use & Reliability
After six months of near-constant use, the Kimble/Kontes burets have proven to be remarkably resilient. We anticipated a higher breakage rate due to the volume and handling, but the glass has held up surprisingly well. Minor chips have appeared, but nothing that compromises their functionality.
The PTFE stopcocks continue to function flawlessly, requiring no maintenance beyond the occasional cleaning. The black ceramic enamel graduations remain clear and legible, resisting fading or chemical damage. Overall, the burets exhibit minimal wear and tear, especially considering the heavy workload they endure daily.
These Kimble/Kontes burets have certainly exceeded my initial expectations. Compared to our previous experiences with cheaper, less durable burets, these have provided a significantly longer lifespan and reduced downtime due to breakage or malfunctioning stopcocks. They’ve proven themselves to be a reliable and cost-effective solution for our high-volume titration needs.
Breaking Down the Features of Kimble/Kontes KIMAX Brand Burets, Class B, Straight Bore Stopcock 17026F 100 Burets With Ptfe Stopcock, Case
Specifications
Capacity: 100 mL. This volume is standard for many titrations and provides a good balance between precision and practicality.
Graduations: 0.2 mL. This level of detail offers adequate precision for routine lab work, although it’s less precise than Class A burets with finer graduations.
Tolerance: ±0.20 mL. This indicates the maximum expected deviation from the true volume, reflecting the Class B designation.
Length: 765 mm. The length is appropriate for a 100 mL buret, providing a comfortable viewing angle for accurate readings.
Cap Size: 20 mm. This is the standard size for the KIM-KAP dust cap, protecting the buret from contamination when not in use.
Stopcock: Straight Bore with PTFE Plug. The straight bore design is simple to clean and maintain. The PTFE plug offers superior chemical resistance and eliminates the need for grease, preventing leaks and seizing.
Material: KIMAX Borosilicate Glass. KIMAX glass is known for its excellent chemical resistance and thermal stability, essential for lab applications.
Scale: Black Ceramic Enamel. The durable enamel ensures the graduations remain legible, even after repeated exposure to chemicals and cleaning.
These specifications are crucial because they directly influence the accuracy and usability of the burets. The Class B tolerance dictates the level of precision achievable. The PTFE stopcock guarantees smooth operation and prevents contamination. The KIMAX glass ensures durability in a demanding lab environment.
Performance & Functionality
The Kimble/Kontes burets perform admirably for their intended purpose – routine titrations requiring reasonable accuracy. The straight bore stopcock allows for consistent and controllable flow, enabling precise endpoint determination. The 0.2 mL graduations are clear and easy to read, minimizing the risk of parallax errors.
The main strength of these burets lies in their reliability and ease of use. The PTFE stopcocks eliminate the common problems associated with greased glass stopcocks, saving time and reducing frustration. The straightforward design makes them easy to clean and maintain, ensuring long-term performance. However, the Class B tolerance means they are not suitable for applications requiring the highest levels of accuracy.
The Kimble/Kontes burets meet our expectations for a general-purpose lab buret. They provide a good balance of accuracy, durability, and affordability, making them an excellent choice for high-volume titration needs. While they don’t offer the extreme precision of Class A burets, they are more than adequate for the vast majority of our water quality testing.
Design & Ergonomics
The Kimble/Kontes burets feature a simple, functional design. The KIMAX glass feels robust and well-made. The graduations are clearly marked and easy to read, even under varying lighting conditions.
The burets are relatively lightweight, making them comfortable to handle for extended periods. The straight bore stopcock is easy to operate, requiring minimal effort to control the flow. There is no significant learning curve; even novice technicians can quickly learn to use them effectively.
Durability & Maintenance
These Kimble/Kontes burets are designed for long-term use. The KIMAX glass is highly resistant to chemical attack and thermal shock, ensuring they can withstand the rigors of a lab environment. The PTFE stopcocks are virtually maintenance-free, eliminating the need for greasing or periodic replacement.
Maintenance is simple: rinse with distilled water after each use and occasionally clean with a mild detergent. With proper care, these burets should last for years, providing a reliable and cost-effective solution for titration needs. The robustness has been a welcome improvement over other, cheaper brands.
Accessories and Customization Options
The Kimble/Kontes KIMAX Brand Burets, Class B, Straight Bore Stopcock come with a KIM-KAP dust cap to protect the buret from contamination. No other accessories are included.
These burets are compatible with standard buret stands and clamps. The PTFE stopcock is not customizable, but it is a standard size and can be replaced if necessary. The lack of customization options is not a significant drawback, as these burets are designed for general-purpose use. However, the compatibility with standard stands and clamps makes them easy to integrate into existing lab setups.
Pros and Cons of Kimble/Kontes KIMAX Brand Burets, Class B, Straight Bore Stopcock 17026F 100 Burets With Ptfe Stopcock, Case
Pros
- Affordable Price: Offers excellent value, especially when purchasing in bulk.
- PTFE Stopcock: Eliminates leaks and seizing, ensuring smooth and reliable operation.
- Durable KIMAX Glass: Provides excellent chemical resistance and thermal stability.
- Easy to Clean and Maintain: Simplifies lab workflow and reduces downtime.
- Clear Graduations: Enhances accuracy and reduces the risk of parallax errors.
Cons
- Class B Tolerance: Not suitable for applications requiring the highest levels of accuracy.
- Lack of Customization Options: Limited to the standard configuration.
Who Should Buy Kimble/Kontes KIMAX Brand Burets, Class B, Straight Bore Stopcock 17026F 100 Burets With Ptfe Stopcock, Case?
These Kimble/Kontes burets are perfect for:
- Water quality testing labs.
- Educational institutions (high school and college chemistry labs).
- General chemistry labs performing routine titrations.
- Any lab requiring a high volume of reliable burets at an affordable price.
Who should skip this product?
- Labs requiring extremely high accuracy (e.g., pharmaceutical research, certified analytical testing) should opt for Class A burets or automatic titrators.
- Individual researchers needing only a small number of burets may find it more cost-effective to purchase higher-end, individually calibrated models.
Must-have accessories or modifications?
- A sturdy buret stand and clamp are essential for safe and accurate dispensing.
- Proper cleaning supplies (distilled water, mild detergent) are necessary for maintaining the burets.
Conclusion on Kimble/Kontes KIMAX Brand Burets, Class B, Straight Bore Stopcock 17026F 100 Burets With Ptfe Stopcock, Case
The Kimble/Kontes KIMAX Brand Burets, Class B, Straight Bore Stopcock 17026F 100 Burets With Ptfe Stopcock, Case offer a compelling combination of affordability, reliability, and ease of use. The PTFE stopcocks are a game-changer, eliminating the common frustrations associated with traditional glass stopcocks. The KIMAX glass construction ensures durability in a demanding lab environment.
The price is definitely justified, especially considering the longevity and reduced maintenance costs compared to cheaper alternatives. These burets represent a smart investment for any lab needing a high volume of reliable dispensing tools.
I would personally recommend these Kimble/Kontes burets to any lab performing routine titrations where high accuracy is not paramount. If you need reliable, durable, and affordable burets, these are an excellent choice. Equip your lab with confidence and efficiency – invest in the Kimble/Kontes KIMAX Brand Burets today!