Grit & Gear: Testing the Kimble/Kontes KIMAX Brand Reusable Measuring (Mohr) Pipets, Class B, Color-Coded 37020-2, Case of 12
The Kimble/Kontes KIMAX Brand Reusable Measuring (Mohr) Pipets, Class B, Color-Coded 37020-2, Case of 12 are more than just laboratory glassware; they’re precision instruments crucial for accurate liquid handling. Manufactured by Kimble/Kontes, these pipets are designed for chemical laboratory work, adhering to ASTM Specification E1293, Style 1, Class B requirements, ensuring reliability and accuracy. The color-coding and durable KIMAX-51 glass are standout features.
My journey to acquiring this case of pipets began with a need for precise liquid measurements in a mobile analytical setup. I was consulting for a remote environmental monitoring project that required field-based chemical analysis, demanding both accuracy and reusability. I needed reliable pipets that could withstand rigorous handling and repeated use in challenging conditions.
Upon unboxing, the first thing that struck me was the robust feel of the KIMAX-51 glass. Each pipet felt substantial and well-made, a clear indication of quality craftsmanship. The color-coded bands were vibrant and clearly marked, making identification easy even under dim lighting conditions.
Compared to the generic, disposable plastic pipets I’d previously relied on, the Kimble/Kontes pipets were a game-changer. I considered borosilicate glass pipets from other brands, but Kimble/Kontes’s reputation for quality and the specific Class B certification swayed my decision. These promised a level of accuracy and durability that disposable options simply couldn’t match.
My initial reaction was one of excitement tempered with a healthy dose of skepticism. Could these pipets truly deliver the accuracy and durability I needed in a demanding field environment? Only real-world testing would provide the answer.
Real-World Testing: Putting Kimble/Kontes KIMAX Brand Reusable Measuring (Mohr) Pipets, Class B, Color-Coded 37020-2, Case of 12 to the Test
First Use Experience
My first test involved using the pipets in a makeshift field lab during a water quality assessment project. The location was a remote site with fluctuating temperatures and humidity. I used the pipets to measure reagent volumes for titration experiments, critical for assessing contaminant levels in water samples.
Despite the less-than-ideal conditions, the pipets performed flawlessly. The clear graduations and precise delivery allowed for consistent and accurate measurements, even with the ambient temperature changes affecting liquid viscosity slightly. No issues were encountered, and the color-coding significantly sped up the workflow.
Extended Use & Reliability
After several weeks of intensive field use, the Kimble/Kontes pipets continued to impress. There were no signs of etching or fading on the graduations. The glass remained resilient despite accidental bumps and drops (within reason, of course; they are still glass!).
Maintenance was straightforward: a simple rinse with distilled water and a mild detergent after each use kept them clean and ready. Compared to the frustration of constantly discarding and replacing disposable pipets, the reusability and durability of the KIMAX pipets were a welcome change. They significantly outperformed my previous experiences with cheaper alternatives.
Breaking Down the Features of Kimble/Kontes KIMAX Brand Reusable Measuring (Mohr) Pipets, Class B, Color-Coded 37020-2, Case of 12
Specifications
The Kimble/Kontes KIMAX Brand Reusable Measuring (Mohr) Pipets, Class B, Color-Coded 37020-2, Case of 12 boast several crucial specifications. These include a 2 mL capacity with 0.10 mL subdivisions, a tolerance of ±0.02 mL, an overall length of 350 mm, and a green band color. These specs directly impact the usability and accuracy of the pipets in laboratory and field settings.
The 2 mL capacity is ideal for small-volume measurements, common in many analytical chemistry applications. The 0.10 mL subdivisions allow for precise dispensing, while the ±0.02 mL tolerance ensures reliable and repeatable results. The length provides a comfortable grip and minimizes the risk of contamination.
Performance & Functionality
The Kimble/Kontes KIMAX Brand Reusable Measuring (Mohr) Pipets, Class B, Color-Coded 37020-2, Case of 12 excels in its intended purpose: delivering accurate and repeatable liquid measurements. The fine tip allows for controlled dispensing, preventing drips and spills. The KIMAX-51 glass construction minimizes chemical interactions, ensuring the integrity of the samples.
The primary strength lies in its reliability and accuracy, providing confidence in the results obtained. A minor weakness could be the glass construction, making them susceptible to breakage if mishandled. However, with proper care, this is easily mitigated. These pipets exceed expectations for accuracy and durability within the Class B range.
Design & Ergonomics
The Kimble/Kontes KIMAX Brand Reusable Measuring (Mohr) Pipets, Class B, Color-Coded 37020-2, Case of 12 are designed for ease of use and comfort. The slim profile and smooth glass surface provide a comfortable grip, even for extended periods. The color-coded bands are a thoughtful addition, facilitating quick and easy identification of the desired pipet.
The design is simple and functional, minimizing unnecessary features that could compromise usability. There’s virtually no learning curve; anyone familiar with basic laboratory techniques can use these pipets effectively.
Durability & Maintenance
The Kimble/Kontes KIMAX Brand Reusable Measuring (Mohr) Pipets, Class B, Color-Coded 37020-2, Case of 12, constructed from durable KIMAX-51 glass, are built to last. With proper handling and care, these pipets can withstand years of use.
Maintenance is straightforward: regular cleaning with mild soap and water is sufficient to maintain their cleanliness and accuracy. The fused brown stain for the scale ensures it remains legible even after repeated cleaning cycles.
Accessories and Customization Options
The Kimble/Kontes KIMAX Brand Reusable Measuring (Mohr) Pipets, Class B, Color-Coded 37020-2, Case of 12 do not typically require additional accessories for their primary function. However, bulbs or pipet fillers can be used to draw liquids more efficiently, particularly for larger volumes or viscous solutions.
These pipets are compatible with standard pipet washers and drying racks for efficient cleaning and storage. There are no specific customization options, but the standard design is versatile enough for a wide range of applications.
Pros and Cons of Kimble/Kontes KIMAX Brand Reusable Measuring (Mohr) Pipets, Class B, Color-Coded 37020-2, Case of 12
Pros
- Exceptional accuracy within the Class B tolerance, ensuring reliable measurements.
- Durable KIMAX-51 glass construction provides long-lasting performance, even with frequent use and cleaning.
- Color-coded bands simplify identification and reduce the risk of errors.
- Reusable design reduces waste and saves money compared to disposable alternatives.
- Easy to clean and maintain, saving valuable time in the lab.
Cons
- Glass construction makes them susceptible to breakage if mishandled.
- Class B tolerance, while acceptable, may not be sufficient for ultra-high precision applications requiring Class A pipets.
Who Should Buy Kimble/Kontes KIMAX Brand Reusable Measuring (Mohr) Pipets, Class B, Color-Coded 37020-2, Case of 12?
The Kimble/Kontes KIMAX Brand Reusable Measuring (Mohr) Pipets, Class B, Color-Coded 37020-2, Case of 12 are perfect for: chemical laboratories, environmental testing facilities, educational institutions, and any application requiring precise liquid measurements where Class B accuracy is sufficient. These are ideal for users who prioritize accuracy, durability, and reusability in their glassware.
Individuals or organizations requiring ultra-high precision measurements (beyond the ±0.02 mL tolerance) should consider Class A pipets instead. Labs exclusively using automated liquid handling systems may find these pipets less relevant. A bulb or pipet filler is a must-have accessory to improve efficiency and reduce the risk of accidental ingestion of liquids.
Conclusion on Kimble/Kontes KIMAX Brand Reusable Measuring (Mohr) Pipets, Class B, Color-Coded 37020-2, Case of 12
The Kimble/Kontes KIMAX Brand Reusable Measuring (Mohr) Pipets, Class B, Color-Coded 37020-2, Case of 12 offer an excellent balance of accuracy, durability, and value. While the price tag of $359.99 may seem steep compared to disposable options, the long-term cost savings and improved accuracy make it a worthwhile investment for any serious laboratory or testing environment.
I would personally recommend these pipets to anyone seeking reliable and reusable glassware for precise liquid handling. They are a workhorse in the lab, delivering consistent performance and contributing to more accurate and reliable results. Invest in the Kimble/Kontes KIMAX Brand Reusable Measuring (Mohr) Pipets, Class B, Color-Coded 37020-2, Case of 12 and experience the difference quality glassware can make!