Now in Stock: Precision with Borosil Bottle Top Dispensers

Atom Scientific Now Stocks Borosil Bottle Top Dispensers – Available for Fast Delivery and Easy Online Ordering!

The Borosil Bottle Top Dispensers are designed for precise liquid dispensing with enhanced safety features and simple DIY calibration. Fully autoclavable and easy to recalibrate, these dispensers ensure reliability and convenience for users. Plus, each unit includes QR code-based compatibility, making it user-friendly for all.

Key Features

• Built-in Safety Splash Guard: Prevents accidental ejection of the discharge tube for added safety.
• 360° Working Position: Allows for safe, easy access from any angle on the bottle.
• Effortless Dispensing: The low-resistance piston ensures smooth liquid dispensing with minimal effort.
• Easy Volume Selection: Large format scale with a slide-and-lock knob for precise volume adjustments.
• DIY Calibration Ring: Users can recalibrate the unit themselves with the built-in tool and position marker—no need for costly third-party services, even after autoclaving or dismantling.

Borosil Bottle Top Dispensers come with a set of bottle top adapters (28, 32, 36, 38, 40, 45 mm) to fit various reagent bottles, all included as standard.

Order yours today and experience the convenience and precision that Borosil brings to your lab!

DIY Calibration

Regular monitoring of your test equipment is essential for maintaining precise results. Although your laboratory bottle top dispenser is initially calibrated at its nominal volume, factors like environmental conditions and the viscosity of the dispensed liquid can cause variations over time. To ensure continued accuracy, it’s recommended to perform gravimetric volume testing every 3 to 12 months following the outlined procedure below. This method adheres to DIN EN ISO 8655-5 standards.

Make sure the Calibration knob is at the mentioned position i.e., from 1 to 20 (please check the Calibration report). Now this is considered as Zero* position for you dispenser. From there rotate the knob Clockwise and Place it in the Calibrated position mentioned in your Calibration report. *The Zero and Calibrated Position changes for individual Bottle Top Dispensers.

1. Set Dispenser Volume: Begin by setting your dispenser to its nominal volume or another commonly used volume. Follow standard calibration procedures. Dispense ten full volumes of distilled or deionised water (ISO 3696) at 20°C onto an electronic balance, ensuring the reservoir (e.g., flask) is filled with some water. This process helps determine the mean volume dispensed.

2. Adjust for Accuracy: During the gravimetric test, the measured weight represents the mass of the dispensed water. To find the actual volume, you’ll need to adjust for both water density and air buoyancy. Pull the cap to expose the calibration knob, then turn it clockwise to reduce the volume or counterclockwise to increase it. Continue adjusting until the desired volume is achieved on the balance.

3. Finalise Calibration: Once the correct volume is reached, ensure the calibration knob is in the specified position (typically between 1 and 20 as noted in your calibration report). This position now becomes your dispenser’s "Zero" point. Rotate the knob to the calibrated position indicated in your calibration report.

View our Borosil Bottle Top Dispensers Range