Standard (as applicable) / Requirement (# and description):
9.1.1 Monitoring, measurement, analysis and evaluation : General. The organization shall ensure that calibrated or verified monitoring and measurement equipment is used and maintained, as appropriate. The organization shall retain appropriate documented information as evidence of the monitoring, measurement, analysis and evaluation results.
Nonconformity Description (basis of Root Cause Analysis and Corrective Action):
Measurement equipment is not always effectively controlled.
Objective Evidence Observed (Basis of Correction):
Calibration records indicated as found failures for several pH meters (MU1000 for 6/23/22 & 2/11/22 &4/18/22, MU1001 for 1/30/22 & 2/11/22 & 4/18/22 & 6/22/22) without evidence of investigation/assessment as to impact on environmental systems.