Meetings & Conferences

Quality Expo, February 11-12, Anaheim, California
2015 Measurement Science Conference (MSC), March 18-20, Anaheim, California
A2LA 2015 Technical Forum, March 20-22, Baltimore, Maryland
SENSOR+TEST, 19-21 May 2015, Nürnberg, Germany

Pipette Calibration: The Gravimetric Method and Balance Resolution

By Ann Lenhardt & Erin Lenhardt

The most common and economical method used for pipette calibration is gravimetric analysis, defined as the quantitative determination of  an analyte based on the mass of a solid. Many internationally known standards such as the ISO 8655 Part 6: Gravimetric Methods for the Determination of Measurement Error and the ASTM E-11154-89 Standard Specification for Piston or Plunger Operated Volumetric Apparatus are built upon the gravimetric method of calibration; accordingly, most accredited ISO 17025 calibration laboratories use this method.

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