Dispenser-F Bottle-Top Dispenser Series, 0.5-100 mL and ±0.5% Accuracy (CAT#: STEM-BC-3943-ZJF)

The Dispenser-F series consists of bottle-top dispensers for accurate and safe transfer of common laboratory liquids directly from reagent bottles. The five available volume ranges cover dispensing requirements from 0.5 mL to 100 mL. The instruments are suitable for general acids, alkalis, salts, and low-concentration strong acidic or alkaline solutions. Clear scale markings and a rapid volume-locking mechanism support accurate and repeatable volume setting. Chemically resistant inert materials provide stable performance when handling compatible corrosive reagents and solvents. The entire dispenser can be sterilized by steam autoclaving at 121°C. Its simplified structure supports convenient disassembly, cleaning, and routine maintenance. A built-in recirculation valve returns excess reagent to the bottle and helps prevent dripping during idle periods. Five bottle-neck adapters are supplied to improve compatibility with commonly used laboratory reagent bottles.

Volume variants: 0.5-5 mL, 1-10 mL, 2.5-25 mL, 5-50 mL, and 10-100 mL
Volume increments: 0.1 mL, 0.2 mL, 0.5 mL, 1.0 mL, and 2.0 mL respectively
Maximum systematic error for all variants: ±0.5%
Systematic error by variant: ±25 µL, ±50 µL, ±125 µL, ±250 µL, and ±500 µL respectively
Maximum random error for all variants: ±0.2%
Random error by variant: ±10 µL, ±20 µL, ±50 µL, ±100 µL, and ±200 µL respectively
Sterilization: Entire dispenser autoclavable at 121°C
Liquid compatibility: General acids, alkalis, salts, and low-concentration strong acids and bases
Recirculation valve: Included
Bottle adapters: Five standard sizes included
Performance conditions: 20°C, distilled water, equal instrument and ambient temperature, and smooth operation

Five volume-range options
Full 0.5-100 mL coverage
±0.5% systematic accuracy
Fully autoclavable construction
Chemically resistant inert materials
Clear scale and secure volume lock
Reagent-saving recirculation valve
Five included bottle adapters

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