ISO/IEC 17025:2017 - Testing and Calibration Laboratories Foundation Quiz 04 24Mar25 - Practice Quiz

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Question 1 of 30

AgriCorp, a large food processing company, is implementing ISO 22000:2018 to strengthen its food safety management system. During a hazard analysis for their ready-to-eat salad production line, the team identifies *Listeria monocytogenes* as a significant biological hazard. The team determines that sanitation of the salad washing equipment is critical to minimize the risk of *Listeria* contamination. They implement a cleaning and sanitizing protocol with specified procedures and frequencies. To ensure effectiveness, they conduct regular ATP (Adenosine Triphosphate) testing on equipment surfaces post-sanitization to verify cleanliness. Considering the principles of ISO 22000:2018, how should AgriCorp classify this sanitation protocol and ATP testing within their food safety plan, and what factors would influence that classification?

The sanitation protocol, coupled with ATP testing, should be classified as an Operational Prerequisite Program (OPRP) if the ATP results are used to trigger corrective actions when levels exceed a defined threshold, indicating a potential loss of control, but the failure to meet the threshold doesn't immediately result in unsafe product.

The sanitation protocol should be classified as a Prerequisite Program (PRP) because it addresses a general hygiene practice and is not specific to a particular hazard or process step. ATP testing is simply a verification activity to ensure the PRP is effective.

The sanitation protocol and ATP testing should be classified as a Critical Control Point (CCP) if the ATP results are used to determine whether the salad is safe to proceed to the next stage of production, with a defined critical limit that, if exceeded, requires immediate disposal of the affected batch.

The sanitation protocol should be classified as a Food Safety Objective (FSO) because it aims to reduce the level of *Listeria* in the final product. ATP testing is used to monitor progress towards achieving the FSO.

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