PYREX Class B burettes have an interchangeable PTFE stopcock key ensuring a smooth grease- free performance.
- Complies with ISO 385
- Fitted with interchangeable PTFE keys for grease-free performance, with 1.5mm bore
- White enamel graduations for good visibility with dark coloured solutions
- Manufactured from borosilicate glass for increased chemical resistance
This product has met the following criteria: