Define measurement and precision requirements

Measurement uncertainties are increasingly discussed in the field of quality. Once they have been estimated, it's a question of defining how they should be considered in relation to the objective of the measurement: declaration of conformity, process analysis (SPC/MSP), calibration, etc.

This fact sheet describes the different approaches available in the field of standards, including the latest developments and future prospects. It specifies the various factors to be taken into consideration when defining measurement processes according to your company's needs.

In particular, this sheet introduces you to the central issue of measurement uncertainty, and the possible ways of taking it into account when processing measurement results.

The following strategies are described in detail:

• Capability (MSA and ISO 22514-7);

• ISO 14253 standard (compliance zone) ;

• NF ISO CEI Guide 98-4 standard (guard band and customer and supplier risks).

To anticipate the very near future, we conclude with another aspect that needs to be considered when choosing equipment. The technological developments leading us towards Industry 4.0 are not without consequences.