this clause covers the requirements for ensuring
that equipment and other devices used for monitoring and measurement of processes and products, are capable of providing the required measurement so that valid decisions can be made with regard to acceptance of processes and product. An organization must determine the monitoring and measurement activities to be performed and the devices needed for these activities in order to provide evidence that products conform to requirements. in order to ensure that the monitoring and measurement devices give valid results, the devices must be subjected to the following.