Pyrex Burettes are manufactured from precision-bore tubing (borosilicate glass) for high accuracy. They comply with ISO 385,
with each class AS burette having a 30s waiting time before final reading can be taken
There are batch certified burettes and Works Certified Burettes which are individually tested and supplied with certificate showing exact volume dispensed at 3 points on the scale, together with individual serial number and certificate provides complete traceability to National Standards
They come in white or blue enamel graduations with some having grease-free 1.5mm bore interchangeable PTFE key, while others have glass key.
The Pyrex Burette range include The Rotaflo type, Schellbach type, Modular type, Sofnol type and the automatic type.