We are in the process of working toward ISO9000 certification. Most of our devices that require calibration are monitored via PLC and displayed on HMI (RSView). My question is, where do we place the calibration stickers? I've suggested a calibration board mounted on the wall behind the monitor with the devices listed and the stickers next to the names. Someone else suggested on the monitor itself, but if the monitor needs to be replaced on the weekend, they're lost. What do you use?