Tag Archives: accreditation

Arun Apte, CloudLIMS
In the Food Lab

Is Your Food Testing Lab Prepping for an ISO/IEC 17025 Audit?

By Arun Apte
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Arun Apte, CloudLIMS

With the increasing globalization of the food industry, ensuring that products reaching consumers are safe has never been more important. Local, state and federal regulatory agencies are increasing their emphasis on the need for food and beverage laboratories to be accredited to ISO/IEC 17025 compliance. This complicated process can be simplified and streamlined through the adoption of LIMS, making accreditation an achievable goal for all food and beverage laboratories.

With a global marketplace and complex supply chain, the food industry continues to face increasing risks for both unintentional and intentional food contamination or adulteration.1 To mitigate the risk of contaminated products reaching consumers, the International Organization for Standardization (ISO), using a consensus-based approval process, developed the first global laboratory standard in 1999 (ISO/IEC 17025:1999). Since publication, the standard has been updated twice, once in 2005 and most recently in 2017, and provides general requirements for the competence of testing and calibration laboratories.2

In the recent revision, four key updates were identified:

  1. A revision to the scope to include testing, calibration and sampling associated with subsequent calibration and testing performed by a laboratory.3
  2. An emphasis on the results of a process instead of focusing on prescriptive procedures and policies.4
  3. The introduction of the concept of a risk-based approach used in production quality management systems.2
  4. A stronger focus on information technologies/management systems, specifically Laboratory Information Management System (LIMS).4

As modern-day laboratories reduce their reliance on hard copy documents and transition to electronic records, additional emphasis and guidance for ISO 17025 accreditation in food testing labs using LIMS was greatly needed. Food testing laboratories have increased reliance on LIMS to successfully meet the requirements of accreditation. Food and beverage LIMS has evolved to increase a laboratory’s ability to meet all aspects of ISO 17025.

ISO 17025 requirements
Figure 1. A schematic representation of some of the requirements of ISO/IEC 17025:2017 compliance. (Figure courtesy CloudLIMS)

Traceability

Chain of Custody
A key element for ISO 17025 accredited laboratories is the traceability of samples from accession to disposal.5 Sometimes referred to as chain of custody, properly documented traceability allows a laboratory to tell the story of each sample from the time it arrives until the time it is disposed of.

LIMS software allows for seamless tracking of samples by employing unique sample accession numbers through barcoding processes. At each step of sample analysis, a laboratory technician updates data in a LIMS by scanning the sample barcode, establishing time and date signatures for the analysis. During an ISO 17025 audit, this information can be quickly obtained for review by the auditor.

Procurement and Laboratory Supplies
ISO 17025 requires the traceability of all supplies or inventory items from purchase to usage.6 This includes using approved vendors, documentation of receipt, traceability of supply usage to an associated sample, and for certain products, preparation of supply to working conditions within the laboratory. Supply traceability impacts multiple departments and coordinating this process can be overwhelming. A LIMS for food testing labs helps manage laboratory inventory, track usage of inventory items, and automatically alerts laboratory managers to restock inventory once the quantity falls below a threshold level.

A food LIMS can ensure that materials are ordered from approved vendors only, flagging items purchased outside this group. As supplies are inventoried into LIMS, the barcoding process can ensure accurate storage. A LIMS can track the supply through its usage and associate it with specific analytical tests for which inventory items are utilized. As products begin to expire, a LIMS can notify technicians to discard the obsolete products.

One unique advantage of a fully integrated LIMS software is the preparation and traceability of working laboratory standards. A software solution for food labs can assist a technician in preparing standards by determining the concentration of solvents needed based on the input weight from a balance. Once prepared, LIMS prints out a label with barcodes and begins the supply traceability process as previously discussed.

Quality Assurance of Test and Calibration Data

This section of ISO 17025 pertains to the validity of a laboratory’s quality system including demonstrating that appropriate tests were performed, testing was conducted on properly maintained and calibrated equipment by qualified personnel, and with appropriate quality control checks.

Laboratory Personnel Competency
Laboratory personnel are assigned to a specific scope of work based upon qualifications (education, training and experience) and with clearly defined duties.7 This process adds another layer to the validity of data generated during analysis by ensuring only appropriate personnel are performing the testing. However, training within a laboratory can be one of the most difficult components of the accreditation process to capture due to the rapid nature in which laboratories operate.

With a food LIMS, management can ensure employees meet requirements (qualifications, competency) as specified in job descriptions, have up-to-date training records (both onboarding and ongoing), and verify that only qualified, trained individuals are performing certain tests.

Calibration and Maintenance of Equipment
Within the scope of ISO 17025, food testing laboratories must ensure that data obtained from analytical instruments is reliable and valid.5 Facilities must maintain that instruments are in correct operating condition and that calibration data (whether performed daily, weekly, or monthly) is valid. As with laboratory personnel requirements, this element to the standard adds an additional layer of credibility that sample data is precise, accurate, and valid.

A fully integrated software solution for food labs sends a notification when instrument calibration is out of specification or expired and can keep track of both routine internal and external maintenance on instruments, ensuring that instruments are calibrated and maintained regularly. Auditors often ask for instrument maintenance and calibration records upon the initiation of an audit, and LIMS can swiftly provide this information with minimal effort.

Figure 2. A preconfigured food LIMS to manage instrument calibration and maintenance data. (Figure courtesy of CloudLIMS)

Measurement of Uncertainty (UM)
Accredited food testing laboratories must measure and report the uncertainty associated with each test result.8 This is accomplished by using certified reference materials (CRM), or known spiked blanks. UM data is trended using control charts, which can be prepared using labor-intensive manual input or performed automatically using LIMS software. A fully integrated food LIMS can populate control data from the instrument into the control chart and determine if sample data analyzed in that batch can be approved for release.

Valid Test Methods and Results
Accurate test and calibration results can only be obtained with methods that are validated for the intended use.5 Accredited food laboratories should use test methods that are current and contain embedded quality control standards.

A LIMS for food testing labs can ensure correct method selection by technicians by comparing data from the sample accession input with the test method selected for analysis. Specific product identifiers can indicate if methods have been validated. As testing is performed, a LIMS can track time signatures to ensure protocols are properly performed. At the end of the analysis, results of the quality control samples are linked to the test samples to ensure only valid results are available for clients. Instilling checks at each step of the process allows a LIMS to auto-generate Certificates of Analysis (CoA) knowing that the testing was performed accurately.

Data Integrity
The foundation of a laboratory’s reputation is based on its ability to provide reliable and accurate data. ISO 17025:2017 includes specific references to data protection and integrity.10 Laboratories often claim within their quality manuals that they ensure the integrity of their data but provide limited details on how it is accomplished making this a high priority review for auditors. Data integrity is easily captured in laboratories that have fully integrated their instrumentation into LIMS software. Through the integration process, data is automatically populated from analytical instruments into a LIMS. This eliminates unintentional transcription errors or potential intentional data manipulation. A LIMS for food testing labs restricts access to changing or modifying data, allowing only those with high-level access this ability. To control data manipulation even further, changes to data auto-populated in LIMS by integrated instrumentation are tracked with date, time, and user signatures. This allows an auditor to review any changes made to data within LIMS and determine if appropriate documentation was included on why the change was made.

Sampling
ISO 17025:2017 requires all food testing laboratories to have a documented sampling plan for the preparation of test portions prior to analysis. Within the plan, the laboratory must determine if factors are addressed that will ensure the validity of the testing, ensure that the sampling plan is available to the laboratory (or the site where sampling is performed), and identify any preparation or pre-treatment of samples prior to analysis. This can include storage, homogenization (grinding/blending) or chemical treatments.9

As sample information is entered into LIMS, the software can specify the correct sampling method to be performed, indicate appropriate sample storage conditions, restrict the testing to approved personnel and provide electronic signatures for each step.

Monitoring and Maintenance of the Quality System

Organization within a laboratory’s quality system is a key indicator to assessors during the audit process that the facility is prepared to handle the rigors that come with accreditation.10 Assessors are keenly aware of the benefits that a food LIMS provides to operators as a single, well-organized source for quality and technical documents.

Document Control
An ISO 17025 accredited laboratory must demonstrate document control throughout its facility.6 Only approved documents are available for use in the testing facility, and the access to these documents is restricted through quality control. This reduces the risk of document access or modification by unauthorized personnel.

LIMS software efficiently facilitates this process in several ways. A food LIMS can restrict access to controlled documents (both electronic and paper) and require electronic signatures each time approved personnel access, modify or print them. This digital signature provides a chain of custody to the document, ensuring that only approved controlled documents are used during analyses and that these documents are not modified.

Software, LIMS
Figure 3. A software solution for food labs helps manage documents, track their revision history, and ensure document control. (Figure courtesy of CloudLIMS)

Corrective Actions/Non-Conforming Work
A fundamental requirement for quality systems is the documentation of non-conforming work, and subsequent corrective action plans established to reduce their future occurrence.5

A software solution for food labs can automatically maintain electronic records of deviations in testing, flagging them for review by quality departments or management. After a corrective action plan has been established, LIMS software can monitor the effectiveness of the corrective action by identifying similar non-conforming work items.

Conclusion

Food and beverage testing laboratories are increasingly becoming accredited to ISO 17025. With recent changes to ISO 17025, the importance of LIMS for the food and beverage industry has only amplified. A software solution for food labs can integrate all parts of the accreditation process from personnel qualification, equipment calibration and maintenance, to testing and methodologies.11 Fully automated LIMS increases laboratory efficiency, productivity, and is an indispensable tool for achieving and maintaining ISO 17025 accreditation.

References

  1. Spink, J. (2014). Safety of Food and Beverages: Risks of Food Adulteration. Encyclopedia of Food Safety (413-416). Academic Press.
  2. International Organization for Standardization (October 2017). ISO/IEC 17025 General requirements for the competence of testing and calibration laboratories. Retrieved from: https://www.iso.org/files/live/sites/isoorg/files/store/en/PUB100424.pdf
  3. 17025 Store (2018). Transitioning from ISO 17025:2005 to ISO/IEC 17024:2017. Standards Store.
  4. Perry Johnson Laboratory Accreditation (2019). An Overview of Changes Between 17025:2005 and 17025:2017. ISO/IEC 17025:2017 Transition. https://www.pjlabs.com/downloads/17025-Transition-Book.pdf
  5. Analytical Laboratory Accreditation Criteria Committee. (2018). AOAC INTERNATIONAL Guidelines for Laboratories Performing Microbiological and Chemical Analyses of Food, Dietary Supplements, and Pharmaceuticals, An Aid to Interpretation of ISO/IEC 17025. Oxford, England: Oxford University Press.
  6. Cokakli, M. (September 4, 2020). Transitioning to ISO/IEC 17025:2017. New Food Magazine.
  7. ISO/IEC 17025:2017. General requirements for the competence of testing and calibration laboratories.
  8. Bell, S. (1999). A Beginner’s Guide to Uncertainty of Measurement. Measurement Good Practice Guide. 11 (2).
  9. 17025Store (2018). Clause 7: Process requirements. Standards Store.
  10. Dell’Aringa, J. (March 27, 2017). Best Practices for ISO 17025 Accreditation: Preparing for a Food Laboratory Audit (Part I). Food Safety Tech.
  11. Apte, A. (2020). Preparing for an ISO 17025 Audit: What to Expect from a LIMS?
FDA

COVID-19 Leads FDA to Extend VQIP Application Period to July 31

By Food Safety Tech Staff
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FDA

Last week FDA announced the extension of the application period for importers that want to participate in the Voluntary Qualified Importer Program for FY 2021. The COVID-19 pandemic has resulted in travel restrictions and advisories that have hampered efforts by accredited Certification Bodies (CBs) to both conduct the onsite regulatory audits and issue certifications to foreign entities, which are required by the VQIP application.

The application portal will stay open until July 31.

VQIP is a voluntary fee-based program that was established under FSMA. Approved applicants are granted an expedited review and import of human and animal foods into the United States if they prove they are achieving and maintaining a high level of control over their supply chains from a safety and security standpoint. Eligibility criteria includes ensuring facilities of foreign suppliers are certified by a CB that has been accredited via FDA’s Accredited Third-Party Certification Program.

Food Labs Conference

Food Labs / Cannabis Labs 2020 Agenda Announced

By Food Safety Tech Staff
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Food Labs Conference

The agenda for the 2020 Food Labs / Cannabis Labs conference has been announced. The event, which will address regulatory, compliance and risk management issues that companies face in the area of testing and food laboratory management, is scheduled to take place on June 3–4 in Rockville, MD.

Some agenda highlights include a special morning session on June 3 that discusses the proposed FSMA rule on lab accreditation: “FSMA and the Impact on Laboratories and Laboratory Data Users” and “FSMA Proposed Rule on Laboratory Accreditation: What it says and what it should say” presented by Reinaldo Figueiredo of ANSI and Robin Stombler of Auburn Health Strategies, respectively. FDA has also been invited to speak on the proposed rule. Sessions will also cover the role of labs as it relates to pathogens, with presentations from Benjamin Katchman, Ph.D. (PathogenDx) about a novel DNA microarray assay used for detecting and speciating multiple Listeria species and Dave Evanson (Merieux Nutrisciences) on pathogen detection and control. The full agenda is listed on the Food Labs / Cannabis Labs website.

The early bird discount of $395 expires on March 31.

Innovative Publishing Company, Inc., the organizer of the conference, is fully taking into considerations the travel concerns related to the coronavirus. Should any
disruption that may prevent the production of this live event at its physical location in Rockville, MD due to COVID-19, all sessions will be converted to a virtual conference on the already planned dates. More information is available on the event website.

Accreditation

Why Accredited Services Increase Business Opportunities And Contribute To The Harmonization Of Regulations

By Natalia Larrimer, Jacqueline Southee, Ph.D.
No Comments
Accreditation

Accreditation is an internationally accepted independent oversight process for maintaining operational standards and ensuring confidence. It is accepted by many governments and private industries, including at various levels of the global food supply.

Recognized within the food industry and endorsed by the Global Food Safety Initiative (GFSI), the process of accredited certification has become essential for business.

In the United States, the Food and Drug Administration (FDA) Food Safety Modernization Act (FSMA), in its rule on accredited third-party certification, incorporates the accreditation process for oversight over third-party certification bodies certifying foreign food facilities manufacturing for import into the United States.

With accredited services increasingly becoming an integral part of business operations, many wonder how the processes of accreditation and certification work.

Accreditation is the process of ensuring that an organization has the necessary technical competence to perform a specific task, and has met and continues to meet a specific set of operational requirements. An accreditation body (AB) uses internationally established techniques and procedures to assess conformity assessment bodies (CABs) against recognized standards to ensure their impartiality, competence, and ability to produce consistently reliable, technically sound and impartial results.

Accreditation provides formal recognition that an organization is competent to carry out specific tasks, and provides an independent assessment of conformity assessment bodies (CABs)1 against recognized standards to ensure their impartiality and competence. Accreditation provides assurance to a CAB’s customers and industry that the CAB continuously operates according to internationally accepted criteria applicable to CAB’s scope of accreditation.

Although there is flexibility for an AB to design its accreditation process within the constraints of ISO/IEC 17011, Conformity assessment – General requirements for accreditation bodies accrediting conformity assessment bodies, the standard to which all internationally recognized ABs must conform, some aspects are mandatory.

As part of the application process, the applicant for accreditation submits information about the desired scope of accreditation and its documented quality management system. The AB conducts a document review to verify that the applicant has documented all management system requirements specified in the relevant criteria and any other applicable requirements. Additional requirements could include, for example, those mandated by a specific regulatory authority or industry. During the assessment, through witnessing of the CAB conducting a conformity assessment activity, interviews of personnel, and review of records and other objective evidence, the AB’s assessment team verifies the CAB’s technical competence and implementation of the quality management system.

The applicant is required to provide corrective action for all identified deficiencies. Only after all identified issues have been addressed can the accreditation decision process begin. To ensure that the accreditation decision is impartial, members of the assessment team do not take part in the decision. The designated decision maker, which may be a group or an individual, is responsible for reviewing the assessment team’s recommendation and ensuring that all accreditation requirements have been met by the applicant and are properly documented before granting accreditation.

A certificate and scope of accreditation are issued only after a favorable accreditation decision.

Once accredited, the CAB is regularly re-assessed to ensure continued conformance to the accreditation requirements, and to confirm that the required standard of operation is being maintained.

To ensure transparency, the AB is required to make publicly available information on the status and scope of accreditation for each accredited CAB. Any changes occurring after initial accreditation, such as suspension for all or part of the scope of accreditation, are published on the AB’s website.

It is important to note while ABs provide oversight over CABs, internationally recognized ABs are themselves subject to regular oversight from organizations orchestrating the harmonization and recognition of the accreditation process internationally.

The International Laboratory Accreditation Cooperation (ILAC) and the International Accreditation Forum (IAF) provide this international oversight. ABs that are signatories of the ILAC and/or IAF mutual recognition agreements (MLAs or MRAs) must conform with the requirements of ISO/IEC 17011 as applicable program-specific requirements, and are admitted to the agreements for a specific capability, for example, as an accreditor for testing labs or for management systems certification bodies. Technical competence of the AB and conformance to the requirements is verified through rigorous on site evaluation by other member of the IAF or ILAC community.

Without international oversight, there would be no evidence or confirmation that an AB operates in accordance with international requirements when providing oversight of accredited CABs. This oversight provides assurance that the AB understands the CAB’s process and can attest to the CAB’s competence.

The IAF, MLA and ILAC agreements are internationally recognized forms of approval; signatories have demonstrated their compliance with specified standards and requirements. Accreditation by a signatory of the ILAC MRA and/or IAF MLA provides assurance that decisions are based on reliable results, thus minimizing risk.

This is of particular importance in the constantly evolving global food-supply network. Many specifiers, such as regulatory authorities, have acknowledged the importance of credible accreditation programs.

A number of government agencies in the United States and around the world, including the U.S. Consumer Product Safety Commission (CPSC), U.S. Environmental Protection Agency (EPA) and the Canadian Food Inspection Agency (CFIA), have mandated accreditation by an internationally recognized accrediting body for their programs.

Accreditation within the MLA/MRA process helps regulators meet their legislative responsibilities by providing assurance that testing, inspection and evaluation results are issued by organizations whose technical competence and compliance with specified criteria has been verified by an independent third party. It provides assurance to stakeholders, such as the regulatory authorities, that the accredited CAB operates in accordance with recognized and accepted criteria.

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Joy Dell'Aringa, bioMerieux

Proficiency Testing Considerations

By Joy Dell’Aringa
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Joy Dell'Aringa, bioMerieux

Proficiency testing has increased in food microbiology laboratories in response to various factors: ISO 17025 accreditation increases, regulatory focus, customer requirements, internal quality requirements and an increase in validation and verification activities. Here we will explore available resources, testing considerations, and response guidance for participating food microbiology laboratories.

What is Proficiency Testing?

Proficiency testing (PT) is widely used in the food testing industry as a way to verify that an individual laboratory is capable of performing a given method. There are several ISO 17043-accredited PT providers that issue unknown samples with various organisms and matrices throughout the year. Heather Jordan, director of LGC PT operations for the API Group in North America, says the increase in participating labs has led to additional insights on the value of PT programs. “We receive feedback from participants that they also find gaps in their methods and operations as a result of the PT. For example, a participating laboratory recently uncovered a reagent expiry system flaw that impacted results and implemented improvements. Another laboratory reported that they were experiencing challenges with a unique matrix type – and through the PT process identified the issue and validated the process adjustments made.” Participating laboratories report analytical results to the PT provider and evaluations are issued based on statistical success criteria. Additionally, performance is often reported to third party entities defined by the laboratory, such as ISO 17025 accreditation bodies and other certifying authorities.

Considerations When Designing a Proficiency Testing Plan

ISO 17025-accredited laboratories are required to have a written proficiency testing plan. Operations not bound by accreditation requirements are still encouraged to document their PT plan as a matter of best practice. When designing a PT plan, laboratories should consider the following:

  • Proficiency Provider(s)

    • Selecting a PT provider is the first step in designing a PT program. Providers may be evaluated based on available accreditation status, analytes and matrices, frequency, data deliverable, accreditation status and cost.
    • Common Microbiology PT providers include:
      • LGC / American Proficiency Institute (API)
      • AOAC
      • Various Regulatory Bodies
    • ISO 17043 is the international standard that proficiency providers are accredited to by various accrediting bodies. When evaluating a PT provider, you should ensure that they are accredited to this standard. A list of ISO 17043 accredited PT providers can be found here: https://portal.a2la.org/pt/PT_Summary1.pdf

  • Matrix & Analytes

    • Matrices selected should be representative of the matrices routinely tested by the microbiology laboratory. Common matrices available include: Dehydrated Mashed Potatoes, Non-Fat-Dry-Milk (NFDM), Powdered Cooked Beef (PCB) and Environmental. The laboratory should consider not only the category of matrix, but also constituency. For example, a dairy laboratory would likely select the NFDM matrix. However, a laboratory that analyzes primarily animal proteins may select the PCB, even if they do not analyze beef specifically.
    • PT providers offer several target analytes for laboratories to choose from. Laboratories should incorporate the appropriate PT’s into their PT plan that match the routine and/or critical analytical operation of the laboratory. Most PT providers will offer package combinations of various quantitative and qualitative tests that include key pathogens and indicator organisms of interest. Laboratories can also select to add on analytes that might be more specialized to their operation such as Campylobacter , STEC or Lactic Acid Bacteria.

  • Frequency:

    • Each PT provider offers scheduled PT rounds throughout the year. When creating the PT plan, the laboratory should consider how often they will participate. Factors to consider are often third party requirements, risk and cost. Often customers or third party certifying bodies will specify a minimum frequency of testing. In the absence of a predefined frequency, laboratories should weigh the risk of failure vs. cost and resources to determine the best frequency. For example, if a laboratory fails a PT- how long before the next PT round is received can be critical to the corrective action process. Many providers will offer off-schedule rounds to aid in troubleshooting and corrective action investigations. Quarterly and biannual frequency is quite common. Annual participation is often the minimum requirement, however many operations find that is not frequent enough to meet PT plan objectives and goals.

  • Rotational Models to Consider

    • Laboratories that conduct multiple methods for the same analyte and/or have several analysts will often incorporate a rotational model in the proficiency testing plan. PT events often have a limited amount of sample to process, which can also create a logistic challenge. A rotational plan is flexible and custom to each operation, but essentially ensures that each method and analyst is evaluated at least annually via PT programs. A rotational plan should also consider how to conduct PTs in order to capture routine operational conditions including staffing, capacity and workflow conditions of the laboratory.

My PT Samples Arrived! Now What?

Once the PT samples have arrived, having a predetermined plan will aide greatly in efficient and organized processing and analysis. Laboratories often designate an individual as a “PT Coordinator” that will schedule the testing event and notify pertinent administrative and lab personnel prior to the arrival of the samples. This helps to ensure all testing reagents and consumables are available and that the needed personnel are available on the days required. The PT Coordinator can organize any rotational aspects of the PT plan, report results, monitor deadlines, receive results and initiate the corrective action process if needed.

PT samples should be prepared according to PT provider instructions so that the laboratory has a working sample to test. This is a critical step and, if not done properly, can have a significant impact on the results. To ensure comparable results across participants the PT provider may include important details in the instructions such as what dilution level to consider the prepared sample, or what characteristics must be present to consider the sample a positive. The working sample should be treated the same as a ‘real world’ sample that would be received by the laboratory. Activities such as sample login, entry into a LIMS or SAP system and set up are important to follow as the laboratory would routinely.

Once the laboratory is in the sample preparation and analysis portion of the PT, it is important to avoid any method modifications unless the laboratory routinely performs a validated modification for a given method. Remember, the PT event is designed to verify the laboratories ability to perform a method, therefore, all factors of sample receipt, set up, analysis and reporting, should be incorporated into the PT process.

When the analysis is complete and results are available, the PT Coordinator can report them to the PT provider. Be mindful of making proper calculations, proper categorical results and appropriate confirmations. Report all results just as the laboratory typically reports them. For example, if the laboratory routinely reports Yeast & Mold as a combined count, or if Listeria is routinely confirmed to the species level, be sure to report it in the same manner for PTs. Records generated through the PT event should also follow the same recording and record keeping process in accordance with laboratory policies. To ensure that records are robust enough for potential troubleshooting, take great care in documenting any anomalies of the event.

Reporting and Response

In addition to reporting results externally to the PT provider, who may also report to other external organizations at the laboratories discretion, the laboratory may also have an internal reporting structure. Once the results are received from the PT provider indicating success or failure for each parameter, the laboratory may also share these results internally, especially if there are multiple laboratories within the network.

If an unsatisfactory result is reported, the laboratory should implement a pre-determined corrective action process. Often this will include several parties such as the lab manager, analysts, PT coordinator and a QA representative. Heather Jordan reminds us that an unsatisfactory result isn’t necessarily a failure for the laboratory. “We encourage laboratories to ask themselves the question ‘was this testing scenario relevant to my operation?’ If not, then they should document accordingly.” For example, a laboratory’s standard practice might be to fail a product on specification if an indicator organism count was too high (such as generic E. coli) and therefore they would not test the product further for a targeted pathogen. In this case, they should document how their laboratory would have handled a similar real life sample according to their procedures and store that documentation with their PT results. The laboratory may even proactively communicate this investigation to their accrediting body. The investigation of an unsatisfactory result should include a document and record review, interviews with participating parties, discussion with other network laboratories (if applicable), and communication with outside stakeholders such as accrediting bodies, the PT provider and the diagnostic company for the corresponding method (if applicable). Often the PT provider will provide educational commentary or guidance on a sample that can also be useful in a corrective action investigation. Many times laboratories will request troubleshooting samples from the same round as the unsatisfactory result – not necessarily to negate the original results – but to aide in the root case and corrective action process.

Audit

Best Practices for ISO 17025 Accreditation: Preparing for Your Food Laboratory Audit (Part II)

By Joy Dell’Aringa
2 Comments
Audit

In Part I of this article, we explored the considerations a laboratory should initially evaluate when pursuing accreditation, as well as guidance from leading industry experts on how to prepare for an ISO 17025 audit. Here we will review what comes after the on-site assessment and provide practical user-based advice for preparing a response, common areas of non-conformance, and future changes to the ISO 17025 Standard.

The Response

Once the assessor has completed the audit, they will typically hold a closing meeting on-site where they present their findings, also referred to as deficiencies or non-conformances. For each finding they will document a specific reference to the standard as evidence and provide opportunity for questions and discussion. Most assessors will be open and conversational during this final portion of the assessment; laboratories are well suited to take advantage of this time. Some assessors will even brainstorm possible responses and corrective actions while onsite; this is valuable insight for the laboratories quality team and can help them get a jump on the response.

Depending on the accrediting body, the laboratory will have a certain amount of time to respond to the findings, usually 30–60 days. The anatomy of a well-assembled response will include a full corrective action report, complete with root cause analysis. Often, the assessor will also request supporting documents and records to show the effectiveness of a corrective action. Most laboratories will have forms to help guide users through the corrective action and root cause process. It is important to have a systematic approach to ensure your corrective action is thorough and balanced.

Determining root cause is a critical part of this exercise. Erin Crowley, CSO of Q Laboratories shares their approach. “We use a variety of root cause analysis techniques, but have found for our operation the principle of the ‘5 Why’s’ is very effective,” she says. “Don’t simply answer the singular deficiency. Accrediting bodies will want to know that you have addressed all variables that might be associated with a finding. For example, if a specific incubator was out of range on a specific date, don’t just indicate that someone fixed it and move on. Assess how they addressed the issue, any impact on data, what they did to react to it, and how they are putting systems in place to prevent it from happening in the future on any other incubator. You have to show the full process.”

Implementing procedures as an outcome of a corrective action can also bring challenges to an operation. As a national multi-site reference lab, Eurofins Quality Manager Peter Dragasakis must work with other departments and locations to deploy new or changed systems for compliance. “Sometimes the most challenging part of the entire audit process is coordinating internal stakeholders across other departments such as IT or complimentary analytical departments,” he says. “Coordinating a response in a timely manner takes full organizational cooperation and support.” Communication throughout the quality and operational arms of an organization is critical to a successful response. Often, accrediting bodies and laboratories may shuttle a response back and forth a few times before everyone is satisfied with the outcome.

Common Areas of Non-Conformance: Pro-Tips

While all areas of the standard are important to a conformant operation, there are a few key areas that are frequently the focus of assessments and often bare the most findings.

Measurement Uncertainty. Depending on the laboratories Field of Testing (FOT), Measurement Uncertainty (MU) can be captured in a multitude of ways. The process aims to systematically and quantifiably capture variability in a process. For chemical analysis this is typically well defined and straightforward. For microbiological analysis the approach is more challenging. A2LA’s General Manager, Accreditation Services, Adam Gouker says the reason many labs find themselves deficient in this area is “they don’t consider all of the contributors that impact the measurement, or they don’t know where to begin or what they need to do.” Fortunately, A2LA offers categorical guidance in documents P103a and P103b (for the life sciences laboratories, two of the of many guidance documents aimed at helping laboratories devise systems and protocols for conformance.

Traceability. There are several requirements in the ISO 17025 standard around traceability. In terms of calibration conformance, which accrediting bodies seem to have emphasized in the last few years, Dragasakis offers this tip: “When requesting [calibration] services from a vendor, make sure you’re requesting 17025 accredited service. You must specify this, as several levels of service may be available, and “NIST Traceable” certificates are usually no longer sufficient.” He also advises that calibration certificates be scrutinized for all elements of compliance closely. “Some companies will simply state that it is ‘ISO 17025 compliant’, [and] this does not mean it is necessarily certified. Look for a specific reference to the accrediting body and the accreditation certificate number. Buyer beware, there is often a price difference between the different levels of calibration. Always practice due diligence when evaluating your calibration vendor and their services, and contact the calibration service if you have any questions.”

Validation vs. Verification. One of the more nuanced areas of the standard lies in determining when a test requires validation, verification, or an extension, specifically when there is a modification to a method or a sample type not previously validated by an internationally recognized organization (AOAC, AFNOR, etc.). Certified Laboratories Director Benjamin Howard reminds us, “think of validation and verification as existing on a spectrum. The more you stray away from an existing validation, the more validation work is required by the analyzing laboratory.” For example, analyzing Swiss cheese for Salmonella by a method that has already been validated for soft queso cheese may require only minimal verification or matrix extension. However, a laboratory that is altering a validated incubation time or temperature would require a much more robust and rigid validation process. Howard cautions, “Accredited laboratories must be transparent about modifications, not only on their scope of accreditation but on their reports [or CofA’s] as well. Under FSMA, companies are now accountable to the data that their laboratories generate. If you see a “modification” note on your report, perform due diligence and discuss this with your laboratory. Ensure a proper validation of the modification was performed. “Additionally, the ISO 17025 standard and accrediting bodies do not mandate how a validation or verification should be done. Laboratories should have a standalone SOP that outlines these procedures using scientifically supported justification for their approach.

CAPA / Root Cause. A good corrective action / preventive action (CAPA) and root cause (RC) analysis program is at the heart of every sound quality system. “Corrective and preventive action (CAPA) processes can either add value or steal time away from the organization according the quality of the root cause analysis,” says Vanessa Cook, quality systems manager at Tyson Foods Safety & Laboratory Services. “CAPA might be the single greatest influence on an organization’s ability to continuously improve and adapt to change if diligence is given to this activity.” Investing in resources such as ongoing training in CAPA/RC programs and techniques are key components to ensuring a robust and effective CAPA / RC program.

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Audit

Best Practices for ISO 17025 Accreditation: Preparing for a Food Laboratory Audit (Part I)

By Joy Dell’Aringa
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Audit

An increasing number of food testing laboratories are seeking accreditation to the ISO/IEC 17025:2005 standard. This growth is chiefly due to regulatory implications, customer requirements, and trade organization recommendations and is seen across laboratory segments: third-party contract laboratories, private in-house laboratories, and government laboratories. ISO 17025 is the most common standard in the food testing industry and sets the guideline for “Laboratories Performing Microbiological and Chemical Analysis of Food and Pharmaceuticals”. Accreditation is known generally as a third-party attestation related to a laboratory, which conveys formal demonstration of competency that implies a reliable and consistent level of quality across an operation for a well-defined parameter of tests, often referred to as the “Field of Testing”. There are several qualified organizations that accredit laboratories to the standard; these organizations are referred to as Accrediting Bodies and are responsible for assessing facilities for conformity to a given ISO standard.

Audit Preparation Guidance

Initial Accreditation: Considerations & Preparation

When a laboratory initially entertains applying for accreditation, several factors should be considered. The cost and time commitment required to become initially conformant, and the on-going resources required to maintain conformity should be thoroughly examined in an overall benefit analysis prior to applying for accreditation. Management should be fully aware of the investment and perpetual commitment of becoming an accredited facility. Accrediting Bodies (ABs) provide resources and literature that can help guide laboratories through the initial audit-preparation phase. However, creating the systematic application of these guidelines that balances the quality and operational objectives of the organization are unique from laboratory to laboratory. Simply put: There is no cookie-cutter approach to accreditation.

Consultant Considerations

Q Laboratories in Cincinnati, OH first embarked on the path to ISO 17025 accreditation in 2009. James Agin, director of regulatory compliance at Q Laboratories and member of the A2LA Laboratory Accreditation Council took the lead on preparing for the initial assessment eight years ago. Q Laboratories was initially unfamiliar with the process, so they hired a consultant who was also an assessor to walk them through the process. “We took about four to five months with a consultant,” says Agin,. “In addition to creating the necessary systems, we gathered the troops and did a deep training on what ISO 17025 is, why we were pursuing it, and why it was important to our business.” The Q Laboratory team created a deep sense of ownership during the education and training process from the supervisors to the bench analysts, which they credit to their ongoing success years later. Erin Crowley, chief scientific officer at Q Laboratories suggests new labs consider hiring a consultant to ease them through the process and get them audit-ready. “If you’re not accustomed to having certain systems in place, a consultant can provide clarity and help initiate processes,” says Crowley. “Having an open forum with an expert helped give our entire team confidence.”

A consultant can streamline the initial process and help avoid some of the pitfalls in creating a robust quality management system for the first time. Tim Osborne, senior director of training services at A2LA offers advice for organizations when vetting a consultant. “While certainly not required, a qualified consultant may be a good asset to have in your quiver,” says Osborne. “Look for industry references and pay close attention to involvement in the industry outside of its own laboratory. Does this person work for an accrediting body? What are the areas of analytical expertise? Does this person also provide training for an accrediting body? If so, it is likely the consultant will offer the quality of services you need to be successful.” It is important to note that assessors and consultants should be upfront with the accrediting body to avoid conflict of interest issues during the actual assessment. Impartiality is critical within the assessment process.

Application Process

Accrediting bodies publish their own “readiness” documents. Laboratories seeking accreditation should request an itemized guide that walks the organization through each phase of the process. The following is a general outline:

  • Obtain copy of ISO standard (17025, 17065, 17020, etc.). Review any specific requirements relevant to your field; these are generally available in a checklist format allowing the laboratory to prepare through an internal audit process.
  • Determine estimated costs with the accrediting body
  • Obtain a copy of the accrediting body s assessor checklist. This usually has to be completed as part of application process
  • Prepare the intended draft scope of accreditation (outlining, specific tests/test methods, calibration parameters/ranges, certification schemes)
  • Implement the management system, and ensure personnel are aware and accept the content
  • Perform an internal audit to verify compliance with the conformity assessment standard requirements, accrediting body requirements, your own management system requirements, and applicable technical requirements
  • Perform a management review
  • Foreign applicants may need to translate supporting application documents to English
  • Identify one specific individual to be responsible for accreditation efforts and interactions with the accrediting body. Identify the “quality manager” who is in charge of the management system
  • Obtain, prepare, and submit the application for accreditation to the accrediting body

Once the initial assessment is complete and the final response and corrections to any deficiencies is in, the laboratory will be reviewed and considered for accreditation through the accrediting body. When the decision is made in favor of accreditation, the laboratory will receive their accreditation certificate, which will correspond to a specific location and set of tests (commonly referred to as a Scope of Accreditation (“Scope”) for the Field of Testing (“FOT”) for which they were assessed). Depending on the accrediting body, the certificate may be valid for one to two years, and will require re-assessment and surveillance at defined frequencies. The laboratory is responsible to maintain conformance to the ISO 17025 standard in between assessments.

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Changing Landscape for Selecting a Food Safety Contract Laboratory

By Bob Ferguson, Thomas R. Weschler
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A recent study of more than 100 food processing customers of food contract laboratories examined the key factors that make a commercial food laboratory competitive in the eyes of their customers. The details of this study, which was conducted by Strategic Consulting, will be presented at the Food Safety Consortium in December.

The 2016 Food Safety Consortium takes place December 5–9 in Schaumburg, IL | LEARN MOREThe volume of microbiology testing worldwide is growing annually at 6%. The study data, however, shows that the growth of microbiology testing at food contract labs is growing at twice that rate—12%—annually. This means that every year food contract labs are taking a larger share of the micro-testing market. Specific to pathogen testing, the situation is more pronounced. Two-thirds of the food processors surveyed conduct routine microbiology testing at their in-house lab, but the number willing to conduct pathogen analysis in-house has dropped to one-third. With more and more companies becoming wary about the risks and costs of analyzing pathogens in a plant lab, outsourcing continues to grow and the volume of total pathogen tests conducted at food contract labs is growing at more than 13% per year. Based on the data generated from the study, it can be deduced that, for the first time in the United States, the number of pathogen tests conducted at food contract labs now exceeds 50% of all pathogen tests conducted in the country. This is not only changing the face of microbiology testing, but it is also creating a very competitive market for laboratory services.

With this test volume now going to food contract laboratories, anyone who needs microbiology analysis has already (at least once) checked the qualifications of a food contract laboratory and validated that it has the right scope of accreditations, specific experience with product type, and proof that they can reliably meet test specifications and detection limits.

These basic qualifications, however, are “table stakes” in today’s highly competitive food safety contract laboratory market.

In the study, the most common answers to the question of the top decision criteria used when selecting a food contract laboratory for microbiology testing were, in order of importance, price, turnaround time, and dependability. When asked about testing of pathogens, most respondents reported that “accreditations” was their number one decision criteria, followed in order by the three previous factors of price, turnaround time and dependability.

A key distinction to understand in this analysis is the term “accreditations” was certainly used to describe formal lab accreditations, but it was also commonly used interchangeably with “expertise.”  In detailed conversations with buyers, it was clear that specialization and competence in pathogen testing was of primary importance and, in many cases, specific experience with the specific pathogen in which they were interested, and in most cases, experience with their specific product type (e.g., meat, dairy, processed foods, etc.).

Interestingly, although proximity to the plant ranked last of the six most common selection criteria, greater than 70% of the plant personnel interviewed reported that they use a food contract lab for pathogen testing that is within 100 miles of their production location. Based on the interviews it was clear that proximity was very important (and linked to turnaround time), but it also revealed that all of the major customers reported that all of the labs they would even consider had locations within a 100-mile radius of their plant. Of these labs, 60% offered a courier service to collect samples at the plant and deliver them to the lab. It is clear that proximity and a sample collection service, while once a point of differentiation, is now seen less as key selection criteria and more of a “table stake” for being considered at all.

Food processors, of course, run samples for testing for parameters other than microbiology. In this study, 78% of the companies surveyed ran tests for nutritional chemistry and, of those, 42% used an in-plant lab. In addition, 81% of the companies test for contaminants (e.g., pesticides, drug residues, metals) and of those, 55% run the tests in an in-plant lab. Of the companies that use a food contract lab for either types of tests, 60–65% (depending on the parameter) report sending samples to a lab that is more than 100 miles from their plant.

It is clear from this data that food processors are far more comfortable analyzing samples for nutritional parameters, contaminants and routine microbiology in an in-plant lab, but fewer are comfortable running pathogen tests in-plant. And while proximity is important for pathogen tests, it was not a top qualifier for nutritional or contaminant testing. As more and more pathogen samples are outsourced to food contract labs, however, it remains to be seen if the samples will “drag” samples for these other parameters along with them to the closer proximate labs. But it is clear that the contract labs with a network of locations that place them close to their customer’s locations and who have expertise in pathogens as well as a full range of other analyses will likely have an advantage.

The role of food contract laboratories will continue to grow, creating great business opportunities. The dynamics of this market, however, are clearly changing the ground rules and presenting companies with new risks and opportunities. Understanding this changing landscape will be of paramount importance to food contract labs, and their  success or failure will depend on their strategic decisions and how well they navigate these changing conditions.

These business environment changes are also essential for food processors to understand. As market conditions change, pricing, turnaround times, and add-on services available from food contract labs will also change, presenting risks and opportunities for processors. Food processors that understand these changes will also be able to take advantage and improve their testing programs.

Counting Food Laboratories

By Robin Stombler
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What We Think We Know

Food laboratories in the United States may voluntarily choose to become accredited to an international standard known as ISO/IEC 17025:2005. This standard outlines the general requirements for the competence of testing laboratories.

More recently, the FDA issued a final rule on the Accreditation of Third-Party Certification Bodies to Conduct Food Safety Audits and to Issue Certifications (Third-Party rule). Effective January 26, 2016, this final rule states that “for a regulatory audit, (when) sampling and analysis is conducted, the accredited third-party certification body must use a laboratory accredited in accordance with ISO/IEC 17025:2005 or another laboratory accreditation standard that provides at least a similar level of assurance in the validity and reliability of sampling methodologies, analytical methodologies, and analytical results.”  In short, for a segment of food laboratories, accreditation has become a necessary credential. At present, it remains a voluntary activity for most food laboratories.

There are accreditation bodies that accredit food laboratories to the ISO/IEC 17025 standard. The major accreditation bodies report on their individual websites which U.S. food laboratories are accredited under their watch.

To find the number of accredited laboratories, a quick search of the websites of four major food laboratory accreditation bodies, A2LA (American Association for Laboratory Accreditation), AIHA-LAP (American Industrial Hygiene Association – Laboratory Accreditation Programs, LLC), ANAB (American National Standards Institute-American Society for Quality), and PJLA (Perry Johnson Laboratory Accreditation) was performed on February 24, 2016. It yielded some debatable results. Here are some of the reasons for the skepticism:

  • The numbers are self-posted to individual websites. The frequency with which these websites are reviewed or updated is unknown.
  • Sites list both domestic and international laboratories. While foreign addresses were excluded from the count, those laboratories could perform testing for U.S. entities.
  • It can be difficult to separate the names of laboratories performing testing on human food versus animal feed.
  • There are several ways to duplicate or even exclude numbers. As examples, laboratories may be accredited within a food testing program, but may also be accredited under “biological” and/or “chemical” schemes—or vice versa.
  • In some cases, it is difficult to discern from the listings which laboratories are accredited for food testing versus environmental or pharmaceutical testing.

With all these caveats, the four major laboratory accreditation bodies accredit approximately 300 food laboratories. A2LA captures the lion’s share of this overall number with approximately 200 laboratories.

Let’s move to another source of numbers. A Food Safety News article about food testing and accreditation published in October 2013 states:

But, when it comes to testing our food, experts estimate that less than five percent of the food testing laboratories in the U.S. are accredited according to international standards…

Some believe that FDA will begin requiring accreditation for at least some significant segment of the food testing industry, of which the U.S. has roughly 25,000 laboratories. Whether that’s restricted to third-party labs – numbering roughly 5,000 – or will also include all food manufacturers’ internal labs is yet to be seen.

Using the writer’s sources, simple arithmetic finds 25,000 laboratories multiplied by the estimated 5% accreditation equals roughly 1,250 accredited laboratories in the United States. This, of course, falls far short of the 300 accredited laboratories noted by the major accreditation bodies. This is not to question either the writer’s sources or the websites of the accreditation bodies, but it does highlight an inconsistency in how we account for the laboratories testing our food.

To go a step further, Auburn Health Strategies produced in 2015, a survey of food laboratory directors, technical supervisors and quality assurance managers on the state of food testing. The survey, commissioned by Microbiologics, asked a series of questions, including: “Are the laboratories you use accredited?”  The respondents replied that, for their on-site laboratories, 42% were accredited and 58% were not. For their outside, contract laboratories, 90% of respondents stated that these laboratories were accredited and five percent did not know.

A second question asked: “Some laboratories are accredited to an internationally-recognized standard known as ISO 17025. Is this important to you?”  Approximately 77% of respondents answered affirmatively. Equally telling, 15% said they did not know or were unsure.

ISO 17025

What we do know is that there is not a definitive accounting of food laboratories—accredited or not. This lack of accounting can present very real problems. For example, we do not have a centralized way of determining if a particular laboratory has deficiencies in testing practices or if its accreditation has been revoked. Without knowing where and by whom testing is conducted, we are at a disadvantage in developing nationwide systems for tracking foodborne disease outbreaks and notifying laboratory professionals of emerging pathogens. We most certainly do not know if all food laboratories are following recognized testing methods and standards that affect the food we all consume.

What We Need Now

FSMA includes a provision calling for the establishment of a public registry of accreditation bodies recognized by the Secretary of Health and Human Services. The registry would also contain the laboratories accredited by such recognized organizations. The name and contact information for these laboratories and accreditation bodies would be incorporated into the registry. Rules for the registry have not yet been promulgated by the FDA, but should be. This is a small step toward greater accountability.

FDA Proposed Rule, Draft Guidance to Ensure Safe Imported Foods

By Food Safety Tech Staff
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The agency wants to establish a user fee program to facilitate audits.

About 15% of the U.S. food supply is imported. And within that figure nearly 80% of seafood, 50% of fresh fruit, and 20% of vegetables come from outside the United States, according to FDA. Under FSMA, the commitment to ensuring the safety of imported foods is a high priority. FDA is releasing a proposed rule, and a companion draft guidance document, to aid foreign entities in proving that they are meeting food safety import requirements.

The proposed rule, “User Fee Program to Provide for Accreditation of Third-Party Auditors/Certification Bodies to Conduct Food Safety Audits and to Issue Certifications”, is scheduled for publication Friday, July 24. FDA has named the following key groups that would be charged fees:

  • Accreditation bodies (ABs) submitting applications or renewal applications for recognition in the third-party accreditation program
  • Recognized ABs and accredited CBs that are participating in the third-party accreditation program and subject to FDA monitoring
  • Certification bodies (CBs) submitting applications or renewal applications for direct accreditation

In addition to naming those subject to the user fee, the proposed rule defines how the fees would be computed and collected, the agency’s public notification process, and what happens if those subject to the fee do not pay it (i.e., suspension of recognition).

In the draft guidance, “Third-Party Auditor/Certification Body Accreditation for Food Safety Audits: Model Accreditation Standards”, FDA makes recommendations on third-party auditor/certification body qualifications.  If finalized, the document will remain a companion guidance to the final rule.