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Suggested Response - Q5

**Your company is considering the prospect of acquiring another brewery and you are being asked to audit their lab for proficiency. Outline the key questions you will ask and the evidence you will need to see.

Response:

A good framework to use for auditing the lab is the technical clause of ISO/IEC 17025.

You would need to ask:

  • How are the appropriate test methods identified and selected?

  • How is equipment selected and calibrated?

  • How are laboratory staff trained and qualified?

  • How is the environment of the lab controlled to ensure calibration is accurate?

  • How are samples taken, transported, and prepared?

  • How is equipment used for testing and/or calibration maintained?

  • How are calibrating or measuring standards selected and measured?

  • Are the standards traceable?

  • Is equipment factory calibration traceable?

  • What does the standard sampling plan look like?

  • What is the policy and procedure for recording and resolving complaints?

  • What is the procedure for monitoring the validity of testing and calibration?

  • Does the lab participate in lab proficiency schemes? If so, what is the z-score for the lab?

  • How are results of analyses processed and recorded?

In terms of evidence you would need to see:

  • Internal/external audits

  • Certificates of accreditation

  • Scores for proficiency schemes

  • Standard sampling plan

  • Lab SOPs

  • Specifications for analytes

  • Results as published and trended

  • Calibration certificates for equipment and standards

  • Daily calibration records

  • Customer complaints log

  • Lab staff certificates of qualification

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