Eppendorf Top Buret H 4965000025

The Eppendorf Top Buret H 4965000025 is a manual bottle-top burette designed for continuous, pulse-free dispensing of liquids from supply bottles, primarily used for manual titration.

Key Features:

• Dispensing increment: 5 mL per turn
• Volume range: 0.01 - 999.9 mL
• Random measurement error: 5 mL: ±1%; ±0.05 mL, 25 mL: ±0.2%; ±0.05 mL, 50 mL: ±0.1%; ±0.05 mL
• Systematic measurement error: 5 mL: ±2%; ±0.1 mL, 25 mL: ±0.4%; ±0.1 mL, 50 mL: ±0.2%; ±0.1 mL
• Operating mode: mechanical
• Pipetting type: positive displacement system
• Number of channels: 1-channel
• Thread type: GL 45
• Bottle thread adapters included: GL 32, GL 38, S 40
• Digital display range: 0.01 - 999.9 mL
• Power supply: 2 × AAA batteries (1.5 V)
• Variable discharge tube: horizontal length 142-220 mm, vertical length 10-200 mm, rotatable 360°
• Telescopic aspirating tube: adjustable length 210-370 mm
• Suitable for liquids up to density 2.2 g/cm³, concentration 1 mol/L, vapor pressure 50 kPa
• Not autoclavable

Advantages:

• Large dispensing volume range with fine resolution (0.01 mL increments) supports precise titrations across wide volumes
• Mechanical operation ensures reliability without dependence on electronics beyond the digital readout
• Positive displacement system offers accurate dosing of viscous or volatile liquids minimizing errors
• Inclusion of multiple thread adapters allows compatibility with various standard bottle types
• Variable and rotatable discharge tube plus adjustable aspirating tube accommodate ergonomic and flexible usage
• Measurement errors low enough for precise laboratory titrations (e.g., random error ≤0.1% at 50 mL)
• Battery-powered digital display provides clear and accurate volume readout enhancing dosing control