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VWR® Rotaflow Burette, with PTFE Needle Valve Stopcock, Class A
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Borosilicate 3.3 glass, class AS
Specifications:
| Application | Titration |
| Material | Borosilicate glass |
| Storage Temperature | Ambient |
| Product Type | Laboratory Glassware |
| Product Brand | VWR |
| Product Grade | Analytical grade |
The VWR® Burettes with PTFE Needle Valve Stopcock offer precision, durability, and ease of maintenance, making them an excellent choice for volumetric titrations in analytical laboratories. Manufactured from high-quality borosilicate 3.3 glass, these burettes provide superior chemical and thermal resistance, ideal for working with a wide range of reagents.
The integrated PTFE needle valve stopcock ensures smooth, leak-free operation without the need for joint grease—enhancing user safety and reducing contamination risk.
Key Features
-
Class AS Accuracy
Compliant with DIN EN ISO 385 for precision titration and analytical measurements. -
Schellbach Stripe
Blue stripe facilitates accurate meniscus reading, reducing parallax error. -
High Contrast Graduations
Blue enamel scale ensures excellent readability, even under variable lighting. -
PTFE Needle Valve Stopcock
Offers chemical inertness and eliminates the need for greasing, simplifying cleaning and maintenance. -
Durable Construction
Made from borosilicate 3.3 glass, highly resistant to heat, chemicals, and mechanical stress. -
Batch Certificate Supplied
Traceable quality assurance for GLP/GMP compliance.
Specifications
| Catalog No. | Capacity | Division | Scale Length | Tolerance (± mL) | Material | Stopcock | Pk |
|---|---|---|---|---|---|---|---|
| 612-6688 | 10 mL | 0.05 mL | 313 mm | ±0.03 mL | Borosilicate 3.3 Glass | PTFE Needle Valve | 1 |
| 612-6689 | 25 mL | 0.10 mL | 342 mm | ±0.05 mL | Borosilicate 3.3 Glass | PTFE Needle Valve | 1 |
| 612-6690 | 50 mL | 0.10 mL | 521 mm | ±0.05 mL | Borosilicate 3.3 Glass | PTFE Needle Valve | 1 |
The VWR® Class AS Burettes with PTFE Needle Valve offer a hassle-free alternative to traditional glass stopcock models, ensuring precision, user safety, and ease of use. These burettes are ideal for titration protocols in pharmaceutical, academic, industrial, and environmental laboratories where accuracy and convenience are paramount.
- Capacity: 10 mL 25 mL 50 mL