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GWP® – The Standard: Science Based Weighing

Posted: January 7, 2014
By: Mettler Toledo

Recent changes to USP weighing chapters 41 and 1251 include revisions to acceptance limits and test weight selection criteria, clarification on repeatability and accuracy tests, and balance checks based on process risk rather than a daily check. These updates have made weighing compliance a current concern for many pharmaceutical companies. This white paper explains the benefits of a user-friendly, risk-based GWP® (Good Weighing Practice™) testing approach. It covers the factors which affect measurement uncertainty, the impact for pharmaceutical companies, and how risks can be mitigated and SOPs can be updated in order to ensure compliance with latest guidelines. GWP® is a global standard that can be applied to new or existing weighing equipment from any manufacturer in any industry or workplace. It was developed as a standardized scientific methodology for secure selection, calibration and operation of weighing equipment.


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