Critical Variables Monitoring

Hi to everibody¡

I have a doubt, if we muss monitor the critical variables of the process, it is enough with the instruments we use in a normal process?, or it is necessary to use an extra instruments during validation?, i mean normaly i monitor the rocess with a thermometer, during validation muss i use an extra calibrted thermometer to report the critical variable?

Thanks in advance

Sergio Ávila

A calibrated instrument with proper reference of calibration certificate is sufficient.
It is good to use one Calibrated reference as a standard at times. But the purpose of this was to be mentioned and instrument number must be indicated in the document.