BURETTE WITH GLASS STOPCOCK, CHINA

Description

This professional-grade burette is designed for high-accuracy volumetric analysis and titration. Manufactured from high-quality Borosilicate 3.3 glass, these units are specifically packaged in custom-molded foam (styrofoam or PE foam) inserts to ensure 100% safety during international transit and local distribution.

Key Product Features

• Material: Borosilicate 3.3 Glass, providing excellent resistance to thermal shock and chemical attack (Class A/B quality).

• Ground Glass Stopcock:

  • Features a precision-ground, straight-bore glass plug.

  • Traditional design offering superior resistance to organic solvents.

  • Provides smooth, tactile control for drop-wise titration.

• Molded Foam Packing:

  • Each burette is housed in a dedicated foam cavity.

  • Prevents “chatter” and vibration damage to the delicate delivery tip and stopcock.

  • Significantly reduces breakage rates compared to standard cardboard dividers.

• High-Contrast Graduations: Permanent fired-on enamel markings (usually blue or white) for easy reading of the meniscus.

• Accurate Calibration: Calibrated “To Deliver” (TD/Ex) at 20°C.

Technical Specifications

Advantages of Foam Packing

1. Tip Protection: The delivery tip is the most fragile part of a burette; the foam mold is recessed to ensure the tip never touches the outer box.

2. Stopcock Security: The foam holds the glass stopcock firmly in place, preventing the plug from falling out or becoming chipped during rough handling.

3. Stackability: Foam-packed cases are more rigid, allowing for safer stacking in warehouse environments.

4. Ready for Courier: These units are “drop-test” ready, making them ideal for direct shipping to end-users without additional over-boxing.

Maintenance & Safety

• Grease Requirement: As this is a glass-on-glass stopcock, a thin layer of stopcock lubricant or silicone grease is required for a leak-proof seal.

• Cleaning: Use a dedicated burette brush for the long barrel. Ensure the stopcock is removed and cleaned separately to prevent grease buildup in the bore.

• Storage: After cleaning, it is best to store the burette vertically. In foam-packed units, ensure the burette is dry before returning it to the foam to prevent moisture buildup.