Pyrex Burette Class AS Works Certificate 10 x

These Pyrex Class AS burettes are calibrated to highest levels of accuracy and are supplied with an individual calibration certificate for complete traceability. Complies with ISO 385 Individually tested and supplied with certificate showing exact volume dispensed at 3 points on the scale Individual serial number and certificate provides complete traceability to National Standards Each burette has a +30s waiting time before final reading can be taken Manufactured from precision-bore borosilicate glass tubing for high accuracy 1.5mm bore PTFE key which requires no lubrication White enamel graduations