1st Edition

Calibration in the Pharmaceutical Laboratory

Edited By Tony Kowalski Copyright 2001

    Increasingly, pharmaceutical scientists must not only be specialists in their field but must also be familiar with legislation that governs the use of equipment in their industry. The regulation of test and measuring equipment changes continually as new regulations are introduced and new equipment is developed. Calibration in the Pharmaceutical Laboratory provides general background on laboratory balances and precision scales, insight into mass measurements and associated errors, and detailed information on key quality issues associated with weighing. Managers responsible for QC and QA will find this book an invaluable tool when setting out SOPs for balances and scales used throughout the manufacturing and testing process.

    Introduction, T. Kowalski, Sartorius Limited
    The Laboratory Balance
    Printed Results
    Data Communications Via a Personal Computer
    Software Integrated into Balances
    Moisture Analyzers
    Calibration of Micropipettes in a Quality System Using a Balance and PC
    Intrinsically Safe Weighing Equipment for Hazardous Areas
    Commissioning of Balances
    Appendix 1.1: Determination of the Minimum Sample Weight According to the USP

    Control of Test and Measuring Equipment in a Quality System: Balances and Scales in GLP/GMP/ISO9000, S. Weyhe, Sartorius, AG
    Motivation
    Selection of Suitable Test and Measuring Equipment
    Determination of the Uncertainty of Measurement
    Calibration and Adjustment
    Traceability of a Measurement
    Documentation
    Defining the Interval of Confirmation
    Summary
    Bibliography

    Expression of Uncertainty for Displayed Net Values, J. Ober, Sartorius, AG
    Quantities Influencing Uncertainty of Measurement
    Determination of the Components
    Calculation of the Uncertainty
    Uncertainty in Practical Use
    Summary
    Reference

    Software Validation, B.A. Wichmann, National Physical Laboratory, UK
    Software Use
    Risk Factors
    Integrity Assessment
    Software Development Practice
    Conclusions
    Acknowledgements
    Appendix 4.A: Check-Lists
    Appendix 4.B: Some Example Problems
    Appendix 4.C: Recommended Software Engineering Techniques
    References

    Errors Associated with Weighing, C. Jenkins, Kent Scientific Services
    Errors Caused by Weighing Instruments
    Errors Caused by Environmental Effects
    Errors Caused by Other Effects
    References

    Weights and Weighing Machines, M.J. Buckley, South Yorkshire Standards Unit
    Metrology and Standards
    Mass Standards and Weights
    Weighing Machines

    Weighing in the Pharmaceutical Industry, T. Scorer, Glaxo Wellcome
    The Pharmaceutical Industry
    Check-Weighing
    The Regulatory Environment
    Non-Automatic Weighing Instruments Directive

    Evaluation of Methods for Estimating the Uncertainty of Electronic Balance Measurements, J.P. Clark and A.H. Shull, Westinghouse Savannah River Company
    Weight Measurement Terminology
    Summary
    References

    Biography

    Tony Kowalski