Class B Glass Graduated Cylinders
Manufacturer: United Scientific
The Class B Glass Graduated Cylinders from United Scientific are designed for the daily rigors of educational, clinical, and industrial laboratories. Combining the chemical precision of borosilicate glass with the durability of a detachable hexagonal plastic base, these cylinders offer a practical solution for measuring liquids with high visibility and reduced risk of breakage. Each cylinder is constructed from heavy, uniform wall tubing to ensure consistent thermal expansion and physical strength. To further protect the glass during accidental tips, every unit in this series includes a plastic bumper guard (guard ring) that can be positioned at the top of the cylinder.
Description
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Features:
- Tip-Resistant Base: The hexagonal plastic base provides significantly more stability than traditional round glass bases and prevents the cylinder from rolling if placed on its side.
- Impact Protection: The included bumper guards act as a shock absorber, significantly reducing the likelihood of the rim chipping or the cylinder shattering if it is knocked over on a benchtop.
- High Chemical Resistance: The borosilicate glass body is resistant to almost all laboratory acids, solvents, and bases, ensuring the graduations remain clear and the glass remains untarnished.
- Easy Maintenance: The detachable base allows for easier cleaning and drying of the glass component in standard laboratory dishwashers or drying racks.
Measurement & Care Tips:
- Reading the Meniscus: For accurate Class B measurements, always view the cylinder at eye level and read the volume at the lowest point of the liquid's curve (the meniscus).
- Bumper Placement: For maximum protection, slide the bumper guard to the top third of the cylinder. It should stay near the rim to prevent the glass from making direct contact with the benchtop during a fall.
- Cleaning: While the glass is heat-resistant, the plastic base and bumper should be removed before autoclaving or high-heat drying to prevent melting or warping.
| SKU | Graduation Interval | Graduation Range | Includes | Tolerance |
|---|---|---|---|---|
| CY137-10 | 0.2 mL | 1 mL - 10 mL | Bumper Guards, Hexagonal Bases | ±0.20 mL |
| CY137-100 | 1.0 mL | 10 mL - 100 mL | Bumper Guards, Hexagonal Bases | ±1.00 mL |
| CY137-25 | 0.5 mL | 5 mL - 25 mL | Bumper Guards, Hexagonal Bases | ±0.34 mL |
| CY137-250 | 2.0 mL | 30 mL - 250 mL | Bumper Guards, Hexagonal Bases | ±2.00 mL |
| CY137-50 | 1.0 mL | 10 mL - 50 mL | Bumper Guards, Hexagonal Bases | ±0.50 mL |
| CY137-1000 | 10.0 mL | 100 mL - 1000 mL | Bumper Guards, Hexagonal Bases | ±6.00 mL |
| CY137-500 | 5.0 mL | 50 mL - 500 mL | Bumper Guards, Hexagonal Bases | ±4.00 mL |
The Class B Glass Graduated Cylinders from United Scientific are designed for the daily rigors of educational, clinical, and industrial laboratories. Combining the chemical precision of borosilicate glass with the durability of a detachable hexagonal plastic base, these cylinders offer a practical solution for measuring liquids with high visibility and reduced risk of breakage. Each cylinder is constructed from heavy, uniform wall tubing to ensure consistent thermal expansion and physical strength. To further protect the glass during accidental tips, every unit in this series includes a plastic bumper guard (guard ring) that can be positioned at the top of the cylinder.
Starting at $23.25
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