These self-zeroing glass burettes have easy to read blue graduations against a white background.
- Delivery end is fitted into a plastic push button stopcock which permits drop by drop delivery
- Small screw clamp adjusts drop speed as needed for titration
- Polyethylene filling tube extends from the top of the burette into the bottle reservoir
- Bottle, screw cap and round base are polyethylene plastic
- Graduation accuracy is Class B