Conclusion
Use of reference materials

Metrology is neither a fad nor a whim of auditors. Mastering measurement processes is necessary in order to :

• control manufacturing processes ;

• check product compliance with specifications ;

• ensure the safety of people and property;

• preserve the environment.

The main difficulties encountered by companies seeking to control measurement processes are to understand :

• the objectives and reasons for metrology in a company ;

• basic metrology concepts, such as traceability, calibration, reference standard, calibration uncertainty, measurement uncertainty;

• and adapt to their company's specific external...