What is the purpose of these web pages?

These pages are intended to help users of acoustical instruments and equipment to define a suitable and appropriate calibration strategy for their needs.

The most appropriate calibration strategy may differ for each organisation. These pages are therefore intended to guide the user through the thought process and decisions required in order to help them define their own appropriate calibration strategy.

Contents

• What is an Appropriate Calibration?
• Overview of Calibration Options
• Appropriate Calibration Strategies
• The Calibration Selection Guide
  • Measurement Objectives
  • Risk Assessment
  • Calibration and Measurement Traceability
  • Measurement Instruments
• Good Practice
• Worked Example

Acknowledgements

In presenting this guide, Frazer-Nash Consultancy, on behalf of NPL, has collaborated with Richard Tyler at AVI Ltd; Steve Tearle and Malcolm Coleman at Casella Measurement; Graham Frost at PC Werth Ltd; Jack Arnett of the RNTNE Hospital; Derek Bousfield; Julian Menes and Andrew Sims at Freeman Hospital, Newcastle upon Tyne; Dr Guy Lightfoot of the Royal Liverpool Hospital; and Lorraine Turner and Kay Crittenden of the United Kingdom Accreditation Service (UKAS).

The contributions of all the technical experts involved are gratefully acknowledged.