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ISO 9001 vs. ISO 17025 Calibration Requirements

ISO standards help businesses keep records, set policies and procedures, and manage production, quality, and service. Still, it’s important to note that the standard's guidelines are only a benchmark for continuous improvement.


Following the 2017 update of ISO 17025, many were left confused about the standard's purpose and how it relates to the Quality Management System (QMS) and the ISO 9001 standard requirements.

If a business deals with measurements or derives data from measurements, it’s crucial to understand how these standards can help in your calibration solutions. Furthermore, in some regions, one might not even be allowed to operate without the required accredited calibration.

 

220914_Download_Icon_PG_Calibration_ENGxP-Compliant Calibration

Suggestion: Calibrated sensors ensure precise, reliable measurements. Find answers to basic questions about GxP-compliant calibration.

 

What is ISO 9001:2015 all about?

Developed by the International Organization for Standardization (ISO), this standard aims at providing a framework for the development of guidelines for effective management systems. ISO 9001 represents a set of acceptable good management policies and is accepted as a business standard worldwide.

Simply put, this standard helps businesses keep records, set policies and procedures, and manage production, quality, and service. Still, it’s important to note that the standard's guidelines are only a benchmark for continuous improvement.

Getting this certification is certainly a big deal as it demonstrates a business’s capability to consistently deliver products and services that meet the customer’s needs. Adopting the standard further allows organizations to use a process approach when creating or improving their management systems.

One distinctive aspect of this standard is its wide scope - it applies to all businesses regardless of size, type and product/service provided. Nevertheless, it’s prudent to carefully evaluate its parts when implementing the standard in your business, owing to this broad generalization.

What is ISO 17025, and how does it benefit your company?

ISO 17025 is the primary international standard for the competence of testing and calibration laboratories. Laboratories of all sizes use it to assure their customers they operate competently and generate valid results, thus promoting confidence in their work.

In many regions, most major laboratories need certification to qualify as competent. This list includes in-house laboratories whose result assurance is a must-have.

Unlike the generalized ISO 9001, ISO 17025 contains specific requirements demonstrating the competence of testing and calibration laboratories.

The standard's original release was in 1999, but two updates have since been released, with the latest edition being in 2017. The most significant areas of focus include management and meeting technical requirements.

The five elements in the standard include:

  • Scope
  • Normative references
  • Terms and definitions
  • Management requirements
  • Technical requirements

The standard also includes general requirements for impartiality and confidentiality (clause 4), structural requirements (clause 5) and resources such as personnel, equipment, technical, facilities, as well as environmental conditions (clause 6).

Clause 7 further outlines crucial process requirements:

  • Reviewing requests, tenders and contracts: Ensure delivery of what customers want.
  • Method suitability: Ensure the proper calibration procedure is being used. Verify and validate the procedures.
  • Record keeping: What technical records need kept, what should they contain, and how long to keep them?
  • Handling items: Procedures for the proper handling of calibration items.
  • Measurement uncertainty: Evaluating and reporting the measurement uncertainty for all calibrations.
  • Result validity: Are results valid? How can one be certain?
  • Result reporting: What are the reporting procedures and how will they be updated?
  • Complaints and nonconforming work: How are complaints and nonconformities handled

ISO 9001 VS ISO 17025: Similarities and Differences

Given the numerous similarities of the requirements, things can get confusing. Knowing when to apply each can be daunting. Although both can work in any industry, their scope is very different.

For instance, while ISO 9001 applies to all types of businesses in all sectors, ISO 17025 is more specific and is tailored to testing and calibration laboratories.

For both, minimum management requirements include:

  • Improvement
  • Management reviews
  • Management system documentation
  • Handling of management system documents
  • Corrective actions
  • Addressing risks and opportunities
  • Records control
  • Internal audits

Depending on a given certification scheme, ISO 17025 allows for two options:

  • Option A: If an organization has yet to implement ISO 9001, its ISO 17025 QMS must demonstrate adherence to certain management requirements (listed above) that are applicable to the scope of laboratory activities.
  • Option B: If an organization already has ISO 9001 certification, it is all set.

ISO 9001 implementation and certification are nice to have but not mandatory to comply with ISO 17025. Still, some organizations will find it beneficial to implement all of ISO 9001 rather than only meeting the minimum management requirements.

By doing so, such businesses will be equipped on how to address various factors, including:

  • Identifying internal and external issues
  • Identifying interested parties
  • Establishing a QMS
  • Formulation of quality objectives
  • Leadership commitment including a quality policy
  • Monitoring and measurement

Furthermore, ISO 17025 on its own does not include all the requirements from ISO 9001, for instance, organizational knowledge is not part of ISO 17025.

Thus, implementing ISO 9001 is a plus in empowering a company to apply risk-based thinking in managing risks and driving improvement. It might not be a must, but it’s undoubtedly a valuable asset when seeking ISO 17025 certification.

ISO 9001 vs. ISO 17025: Which is better?

Both of these international standards are excellent. As such, organizations should do proper research to determine which standard best meets their quality requirements. Remember to educate and train personnel in the company on the chosen standard for the smooth operation of the business. In some cases, they may even need special training to perform specific tasks.

 

Frequently Asked Questions: ISO 9001 vs. ISO 17025 Calibration

What is ISO 17025 calibration and why is it important for laboratories in pharma and healthcare?

ISO 17025 calibration refers to calibration performed in accordance with the ISO/IEC 17025 standard, which defines requirements for the technical competence of testing and calibration laboratories. For regulated industries such as pharmaceuticals and healthcare, ISO 17025 calibration helps ensure accurate, traceable measurement results that withstand audits, regulatory inspections, and GxP compliance requirements.

What is the difference between ISO 9001 and ISO 17025 for calibration?

ISO 9001 is a Quality Management System (QMS) standard that outlines how organizations should control and document their quality processes, including calibration. ISO 17025 focuses specifically on the competence of calibration and testing laboratories, including measurement traceability, technical procedures, and reporting of results. ISO 9001 ensures you manage and document calibration requirements, while ISO 17025 ensures calibration is performed competently and technically sound.

Does ISO 9001 require equipment to be calibrated?

Yes. ISO 9001 requires organizations to ensure measuring equipment is calibrated or verified at specified intervals or before use. The standard also requires documentation of calibration status, traceability to measurement standards, and evidence that instruments remain fit for their intended purpose.

What are the key requirements of ISO 17025 for calibration laboratories?

ISO 17025 includes five main categories of requirements:

General requirements (impartiality and confidentiality), structural requirements (roles and responsibilities), resource requirements (personnel, facilities, equipment and reference materials), process requirements (method validation, measurement uncertainty, traceability, reporting), and management system requirements (internal audits, corrective actions, document control, and risk management).

What is measurement traceability and why is it required in ISO 17025?

Measurement traceability means that calibration results can be linked to national or international measurement standards through a documented, unbroken chain of comparisons. ISO 17025 requires traceability to ensure that calibration results are accurate, reliable, repeatable and defensible during audits or inspections—critical for regulated life science environments.

What is the typical calibration interval for ISO 17025?

ISO 17025 does not prescribe fixed calibration intervals. Calibration frequency should be based on instrument performance, manufacturer recommendations, historical calibration data, environmental conditions, usage and associated risk to product quality or patient safety. High-risk sectors such as pharma and biotech often use shorter intervals to maintain compliance.

What is an ISO calibration certificate and what should it include?

An ISO calibration certificate documents that equipment was calibrated according to an ISO-recognized standard, typically ISO 17025. A compliant certificate should include the calibration method used, measurement results, uncertainty of measurement, traceability information, environmental conditions and a clear indication of pass/fail status.

Is ISO 17025 accreditation mandatory?

ISO 17025 accreditation is not mandatory in all industries, but it is often expected or required by customers, regulatory authorities or supply chain partners in the pharmaceutical and healthcare sectors. It demonstrates technical competence and ensures that calibration results are accurate, traceable and audit-ready.

How can a company ensure equipment is calibrated properly according to ISO 9001?

Organizations should maintain a documented calibration procedure and schedule, ensure qualified personnel perform the calibration, and when possible, use ISO 17025-accredited calibration services. They must document calibration results, maintain traceability, identify calibration status on equipment and review calibration records regularly through internal audits to ensure compliance.

What is the difference between ISO 10012 and ISO 17025?

ISO 10012 provides guidelines for managing measurement processes and measuring equipment within a QMS, but it does not demonstrate technical competency. ISO 17025 is a more comprehensive standard used to accredit calibration and testing laboratories. For regulated environments such as pharma and healthcare, ISO 17025 accreditation carries more weight for compliance and supplier qualification.

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