Pipette and volumetric calibration

Single- and multichannel pipettes, dispensers, burettes and volumetric glassware, calibrated in the lab.

11 instruments and ranges

Instruments we calibrate, with range and where the work is done
Instrument	Range	Where
Micropipette, single-channel	0.1–2 µL	Laboratory
Micropipette, single-channel	2–20 µL	Laboratory
Micropipette, single-channel	20–200 µL	Laboratory
Micropipette, single-channel	100–1000 µL	Laboratory
Micropipette, single-channel	1000–5000 µL	Laboratory
Multichannel pipette	8- or 12-channel · range confirmed on quotation	Laboratory
Bottle-top dispenser	1–10 mL	Laboratory
Burette, glass	10, 25 or 50 mL	Laboratory
Volumetric flask, glass	10–1000 mL	Laboratory
Graduated cylinder	10–1000 mL	Laboratory
Flow meter	Range confirmed on quotation	Laboratory

About this calibration

Method
Calibrated gravimetrically: the water a pipette dispenses is weighed on an analytical balance and converted to volume — the method described in ISO 8655. Your quotation states the volumes tested and the number of repeat measurements.
How often
Most laboratories recalibrate every 6 to 12 months, and after a pipette is dropped, repaired or gives unexpected results. Your quality system sets the interval.
Your certificate
Records the error and repeatability at each tested volume, with the measurement uncertainty, so you can compare it with your tolerance.