The simple answer is that if anyone is making decisions about product or process 'acceptability' (does it meet a specification), then the equipment used should be calibrated or at least verified as operating correctly.
It really doesn't matter (to your management) what the ISO standard says, since most management have never read it or know why it exists, however, they might see the benefit of either having problems of processing or production/productivity because the operators didn't get the correct data they needed to control the thing.
If they are concerned about the cost of calibration or the disruption of removing the equipment to perform the calibration, there are many ways to over come that resistance.
Do you have anyone in the organization who is experienced in running an effective calibration management system? If not, it could be useful to find one.
It really doesn't matter (to your management) what the ISO standard says, since most management have never read it or know why it exists, however, they might see the benefit of either having problems of processing or production/productivity because the operators didn't get the correct data they needed to control the thing.
If they are concerned about the cost of calibration or the disruption of removing the equipment to perform the calibration, there are many ways to over come that resistance.
Do you have anyone in the organization who is experienced in running an effective calibration management system? If not, it could be useful to find one.

