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Selected Laboratory and Measurement Practices and Procedures to Support Basic Mass Calibrations



Georgia L. Harris, Jose A. Torres


This collection of Selected Publications has been compiled as an interim update for a number of Good Laboratory Practices, Good Measurement Practices, Standard Operating Procedures, Statistical Techniques and Reference Tables to be used as a reference document for the CD-ROM Mass Metrology Course being prepared by the NIST Weights and Measures Division.Many of these procedures are updates to procedures that were originally published in NBS Handbook 145, Handbook for the Quality Assurance of Metrological Measurements, in 1986, by Henry V. Oppermann and John K. Taylor. The updates have incorporated many of the requirements noted for procedures in ISO Guide 25, ANSI/NCSL Z 540-1-1994, and ISO/IEC 17025 laboratory quality systems. The major changes in the procedures are the incorporation of 1) uncertainty analyses that comply with current international methods and 2) measurement assurance techniques using check standards. No substantive changes were made to core measurement processes or equations, with the exception of SOP 2, Standard Operating Procedure for Applying Air Buoyancy Corrections. The CIPM 1981/91 equation for calculating air density has been added to SOP 2.
NIST Interagency/Internal Report (NISTIR) - 6969
Report Number


laboratory calibration procedures, Mass measurements, measurement assurance, unceratinty analysis


Harris, G. and Torres, J. (2003), Selected Laboratory and Measurement Practices and Procedures to Support Basic Mass Calibrations, NIST Interagency/Internal Report (NISTIR), National Institute of Standards and Technology, Gaithersburg, MD (Accessed May 24, 2024)


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Created March 1, 2003, Updated June 2, 2021