- Complies with ISO 385.
- Manufactured from precision-bore tubing (borosilicate glass) for high accuracy.
- Grease-free interchangeable PTFE stopcock with 1.5mm bore.
- Graduations in white enamel for increased visibility with dark solutions.
- Individually tested and supplied with a certificate showing exact volume dispensed at 3 points on the scale.
![Burettes, Class AS, With Certificate](https://phytobiosophy.com/wp-content/uploads/2021/02/Burettes3.png)