Information
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Document No.
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Audit Title
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Client / Site
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Conducted on
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Prepared by
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Location
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Personnel
28.1 - CALIBRATION (BASE)
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Measuring and monitoring equipment critical to product safety, legality and quality must be checked for accuracy at pre-determined frequencies
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A contingency or back-up device must be available in the event of CCP / legal measuring equipment being out of service or away for repair
28.2 - CALIBRATION (BASE)
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All measuring and monitoring equipment must be calibrated to national standards where possible or have documented calibration records traceable to national standards
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WGLL - temperature probes are externally calibrated to national standards annually and then verified internally throughout the year
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WGLL - alternatively, a reference probe is externally calibrated to National Standards annually and factory temperature probes are verified against the probe at a defined frequency
28.3 - VERIFICATION (BASE)
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Verification checks across the normal operating range must be conducted on calibrated equipment that is critical to food safety and legality, based on risk assessment
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All portable / handheld CCP equipment is verified on a daily basis e.g temperature probes
28.4 - MASTER LIST (BASE)
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A master list / calibration matrix of all measuring and monitoring equipment requiring calibration must be maintained
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WGLL - the master list / calibration matrix may include;
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- serial numbers and or ID numbers of equipment
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- frequency of calibrations
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- date of last calibration
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- date next calibration due
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- frequency of internal verification
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- acceptable equipment tolerances
28.5 - PROCEDURES (BASE)
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Measuring and monitoring equipment must be calibrated / verified for accuracy against written procedures detailing:
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- frequency of calibration / verification
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- method of calibration / verification
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- Acceptable equipment tolerances
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- corrective action to be taken if outside tolerance
28.6 - CALIBRATION RECORDS (BASE)
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Calibration certificates and records of verification must be available and up to date
28.7 - EQUIPMENT (BASE)
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Measuring and monitoring equipment must be protected from unauthorised adjustment, damage, deterioration and misuse
28.8 - EQUIPMENT (BASE)
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Equipment that is opening outside of specified limits must be take out of service, replaced or sent for repair
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Documented corrective action must be evident where inaccurate measuring or monitoring equipment has been used
28.8.1 - EQUIPMENT (ASPN)
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Where equipment is out of service or away for repair a back up device is available for use
28.9 - TEMPERATURE PROBES (BASE)
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Temperature probes must be calibrated / verified at the temperature range at which they are used
28.10 - WEIGHTS (BASE)
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Standard weights that are used for verification must be of the same weight range as the products being produced
28.11 - EQUIPMENT (BASE)
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Equipment e.g. Flow meters, counting devices, timer devices and ovens etc. must be calibrated at a frequency at least as recommended by the equipment manufacturer
28.12 - TRAINING (BASE)
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All calibration / verification must be carried out by trained personnel only
