TOTAL Calibration Solutions offers accredited instrument calibration services for the OXFORD 500934 PIPETTE 20 TO 200 µL. TOTAL Calibration Solutions is an ISO/IEC 17025:2005 and ANSI/NCSL Z540-1-1994 accredited Ohio based calibration company. All of our calibrations come with free access to our online customer portal which allows 24/7 access to your certificates, recall reports, delinquent reports, and more.