stop watch to measure CCP1 and 2: flow rate, pressure gauge for CCP 3 Bottle rinsing.
(2) When some measuring equipment is verified internally, its method is not corrected. Responsible person does not have technical knowledge about calibration. For example, there are no standard buffers for internal pH meter verification. He cannot explain how to review external calibration certificate no. 13130364N for balance and know that its error is in acceptable level or not.