ISO/IEC 17025 accreditation – what does a laboratory actually gain from it?

Test results are a laboratory’s product. Just like any other product, they can be viewed as reliable or raise doubts. ISO/IEC 17025 accreditation is formal proof that the results issued by the laboratory are reliable, reproducible and based on competence confirmed by an independent body. But what does this mean in practice – for clients, for market position and for the laboratory’s own operations?

Results that no one can dispute

A non-accredited laboratory may carry out tests in exactly the same way as an accredited one – and yet its results will be questioned. By an inspector. By a client. By a court. By an administrative body. ISO/IEC 17025 accreditation puts an end to these discussions before they even begin.

Results issued by an accredited laboratory benefit from the international mutual recognition system – EA MLA/ILAC MRA. In practice, this means that a test report produced in Poland is recognised without further verification in Germany, France, Japan or the United States. This represents a tangible saving of time and money for clients who export their products.

For many industries – pharmaceutical, food, construction, automotive – test results from a non-accredited laboratory are simply not accepted. This is not a matter of preference – it is a legal and contractual requirement.

A gateway to markets that set the bar high

ISO/IEC 17025 accreditation opens up access to contracts that are simply out of reach for non-accredited laboratories. Not because the competition is technically superior – but because demanding clients cannot afford the risk associated with unverified competence.

• Public projects and tenders – government bodies, inspectorates and authorities increasingly require testing to be carried out exclusively by laboratories accredited by the PCA.
• Manufacturers exporting to EU and global markets – require accredited reports as a condition for the release of goods or as part of the documentation submitted to customs authorities.
• Pharmaceutical and medical industries – GMP, GLP and the requirements of regulatory authorities explicitly stipulate the need to use laboratories that are accredited or meet equivalent standards.
• Companies certified to ISO 9001, IATF 16949 and ISO 13485 – when selecting an external laboratory, they increasingly regard accreditation as a prerequisite for supplier qualification.

None of these segments involves a one-off commission – they are long-term relationships based on trust, symbolised precisely by the accreditation certificate.

Credibility that cannot be built through marketing

You can state on a website that a laboratory is ‘independent’, ‘professional’ and ‘excellent’. But a potential client – especially an experienced one – knows that these are just words. ISO/IEC 17025 accreditation is something that cannot be faked: an independent technical assessment, carried out by experts, based on actual inter-laboratory results and documentation. For a client commissioning tests for the first time, this sends a clear signal: here, my samples will be in the hands of people who know what they are doing, and whose competence has been verified by someone other than themselves.

→ Accreditation builds trust faster than any marketing campaign – and is much harder to undermine.

This confidence translates into tangible behaviour: clients are more likely to return, recommend the laboratory to others and are less likely to question the results. Fewer disputes, less explaining – more time for work.

Internal quality that translates into savings

Accreditation is not just a document for clients. It is also an internal mirror that shows the laboratory where it is wasting time, money and credibility.

Implementation of the ISO/IEC 17025 standard requires a systematic approach to method validation, supervision of measuring equipment, staff competence and the traceability of results. These are processes that in non-accredited laboratories often work well ‘for the time being’ – until a complaint arises, a measurement error occurs, or a piece of equipment fails, which nobody knew when it was last calibrated.

• Fewer errors in results – systematic method control and equipment calibration eliminate sources of non-conformity before they become a customer issue.
• Lower costs of complaints and retests – a well-documented system means that an error can be quickly identified and rectified, rather than spent weeks searching for it.
• Better work organisation – clear procedures and roles reduce reliance on individual staff members and facilitate the induction of new employees.
• Readiness for growth – a laboratory with a management system compliant with ISO/IEC 17025 can more easily expand its scope of accreditation to include new methods and areas of testing.