ISO 15416:2025: Impact, compliance and verification of 1D barcodes

The new ISO/IEC 15416:2025 standard changes the way in which the print quality of 1D linear barcodes is assessed. For manufacturers, laboratories, medical device manufacturers, logisticians and all those subject to traceability requirements, this evolution can change the verification result of a code with identical print quality.

Publication, technical changes, operational impacts, company obligations, effects at European level, updating verifiers and training teams: here’s what you need to know to anticipate the transition and secure the compliance of your barcodes.

 

Why ISO 15416:2025 is a strategic issue

ISO/IEC 15416 is the international standard for verifying the print quality of 1D barcodes. It defines the methodology for measuring several attributes of the symbol, the method for evaluating these measurements and obtaining an overall quality grade.

In other words, it answers a simple question: is a 1D barcode printed with sufficient quality to be read reliably in its actual environment of use?

With the 2025 edition, the subject becomes even more sensitive. A physically unchanged code can obtain a different result depending on the old or new version of the standard. This has direct consequences on compliance, quality, traceability, customer relations and flow continuity.

For an industrial company, barcode verification is no longer just a one-off check. It becomes a lever for controlling print quality, reducing non-conformities and securing shipments. To find out more about CIPAM’s offer, discover our Omron barcode verifiers.

 

Date of publication and application of ISO 15416:2025

ISO/IEC 15416:2025 was published in 2025, replacing the previous edition. In practice, a distinction must be made between the publication of the standard and its actual implementation in companies.

An ISO standard becomes a new technical reference as soon as it is published, but whether it is really binding depends on customer specifications, industry standards, internal quality procedures, certification requirements and the verification tools used.

So there isn’t necessarily a single mandatory date that’s the same for all companies. However, as soon as your customers, production sites, subcontractors or auditors refer to the 2025 edition, the subject becomes immediate.

 

 

What are the main changes in ISO 15416:2025?

1. An evolution in the calculation of Rmax and Rmin

One of the major changes is the redefinition of Rmax and Rmin. These values are used to assess symbol contrast, i.e. the difference between the light and dark areas of the barcode.

The new approach aims to smooth out the calculation, particularly in the presence of outliers. In practice, this can alter the measured contrast, and therefore the final grade.

What this means in concrete terms:

• codes close to the thresholds may lose a few grade points;
• some more difficult substrates may be more sensitive to this evolution;
• a previously accepted code can become more borderline, even non-compliant in some cases.

This is particularly important on less homogeneous substrates, irregular backgrounds or some recycled cardboard.

2. A change in the calculation of the overall threshold

The calculation of the overall threshold has also been reviewed for 1D codes, with a logic more consistent with the changes adopted for 2D codes.

The aim is to better reflect readers’ actual behavior, by reducing the impact of certain defects that were heavily penalized by the verifier even though they didn’t necessarily prevent the code from being read.

What this means in concrete terms:

• certain 1D codes will be able to obtain a better decoding grade;
• symbols previously considered non-conforming may become conforming;
• reading the result will require more distance, as a variation in grade will not always mean a variation in the physical quality of the code.

 

 

Why the same code can produce different results

This is one of the most important points for companies to understand.

With ISO 15416:2025, the evaluation method changes. The printed barcode may remain strictly identical, but the result produced by the verifier may evolve.

This means that :

• your quality histories should be reread with care;
• your internal acceptance criteria may need to be reviewed;
• Comparisons between old and new measures are not always straightforward;
• discrepancies may arise between several sites or partners if they do not all use the same reference system.

For quality, methods, industrialization and production departments, this transition must be managed as a real process control issue.

 

 

Is ISO 15416:2025 mandatory?

ISO 15416:2025 is not automatically a universal legal requirement for all companies. It is a technical reference standard.

On the other hand, in many cases, it is becoming indispensable:

• when a customer requires verification according to the applicable ISO standard;
• when an industry standard or specification imposes a certain level of print quality;
• when a company needs to demonstrate the conformity and robustness of its markings;
• when an internal quality system requires standardized controls;
• when a regulated environment requires reliable, documented traceability.

In industrial reality, the question is not just whether the standard is legally binding. The real question is: can you afford not to anticipate it?

What are the practical obligations for companies?

Even where there is no direct regulatory obligation, it is in companies’ interests to act quickly.

Update testers and software

The first priority is to check that the inspection equipment used incorporates the new calculations linked to ISO 15416:2025. CIPAM offers a dedicated range of Omron barcode verifiers for 1D and 2D inspection, in quality, production, logistics and DPM environments.

Trace the normative version used

Inspection reports must clearly state the version of the standard used, to avoid any ambiguity in audits or historical comparisons.

Review acceptance criteria

If your internal thresholds were defined on the basis of previous results, they need to be reassessed in the light of the new standards.

Requalifying sensitive codes

Marking on difficult substrates, codes close to acceptance thresholds or critical applications must be replayed using the new reference system.

Training teams

Change not only affects the tool, but also the interpretation of results. Quality, methods, industrialization and production teams need to understand what is really changing.

To complement this process-oriented approach, you can also discover our compliance control solution for industrial production.

 

Which sectors are most affected?

All sectors that use 1D barcodes to identify, trace, ship or control products are concerned.

• manufacturing industry ;
• logistics and supply chain ;
• pharmacy ;
• medical devices ;
• cosmetics ;
• agri-food ;
• industrial subcontracting ;
• wrapping and packaging.

The more barcode quality has an impact on traceability, compliance or flow, the more strategic the transition to ISO 15416:2025 becomes.

 

What impact will this have at European level?

At European level, the impact of the standard needs to be understood in a broader context: that of the continuing rise in requirements for traceability, proof of conformity and reliability of automatic identifiers.

In multi-site and multi-country environments, the main risk is a lack of alignment:

• one site works with the old reference system;
• another with the new ;
• a subcontractor is still using an older software version;
• a customer already requires controls aligned with the new edition.

The result: interpretation discrepancies, quality disputes and loss of document consistency.

To link this issue to a global identification and data strategy, see our industrial traceability page.

 

What are the risks if you do nothing?

Failure to anticipate ISO 15416:2025 exposes the company to a number of risks.

Misunderstood compliance gaps

A code may look worse or better simply because the calculation method has changed.

Disputes with customers or suppliers

If the parties do not use the same frame of reference, their conclusions on the same code may differ.

A loss of comparability in historical data

Comparing results from two different standards without specifying this weakens quality analyses.

Non-conformities discovered too late

A misinterpreted defect may only become apparent at the time of shipment, upon receipt or at the end-user’s premises.

Insufficiently controlled print quality

Without methodical updating, verification becomes less useful as an operational management tool.

 

 

The recommended action plan in anticipation of ISO 15416:2025

1. Mapping the uses of 1D codes

Identify the applications involved: product labeling, logistics, shipping, internal identification, documentation, packaging.

2. Identify the verification tools used

Take stock of the verifiers, software, control parameters and report templates in circulation on your sites.

3. Check compatibility with standard 2025

Make sure that your hardware and software are aligned with the new edition.

4. Replaying real samples

Test codes representative of your media, printers and real-life applications.

5. Update quality documentation

Control plans, procedures, reports, acceptance criteria and instructions must mention the normative version used.

6. Train teams

Users need to know not only how to run a test, but also how to interpret the results correctly.

7. Align partners

Customers, subcontractors, printers, integrators and remote sites all need to share the same reading repository.

 

 

Why choose CIPAM for your ISO 15416:2025 transition?

At CIPAM, barcode verification is more than just supplying a device. The challenge is to secure the entire marking compliance chain.

We support companies in :

• choosing the right barcode verifier;
• updating verification tools ;
• conformity audit of markings ;
• analysis of control results ;
• team training ;
• improved print quality;
• secure traceability and flows.

Our approach is to link the standard, the field and operational constraints. It’s not just about getting a grade. The aim is to ensure that your barcodes remain legible, compliant and robust in your real-world environment.

To find out more, have a look at our Omron barcode verifiers, our vision systems & verifiers and our traceability and support services.

 

 

Conclusion

ISO 15416:2025 marks an important evolution in the verification of 1D barcodes. Changes in threshold calculation and in the definition of Rmax / Rmin can modify the verification result of the same code, without the marking itself having changed.

For companies, this evolution must be approached as a matter of compliance, quality and operational continuity. Updating auditors, reinterpreting results, reviewing internal criteria, training teams and aligning partners are now key actions.

Anticipating ISO 15416:2025 means avoiding deviations, securing traceability and reinforcing the reliability of your controls.

FAQ on ISO 15416:2025

What is ISO 15416:2025?

ISO 15416:2025 defines the method for verifying the print quality of 1D linear barcodes. It measures several attributes of the symbol, calculates an overall grade and identifies possible causes of non-conformity.

When will ISO 15416:2025 be published?

ISO/IEC 15416:2025 was published in 2025.

What are the main changes in ISO 15416:2025?

The main changes concern the redefinition of Rmax and Rmin, and the evolution of global threshold calculation, with possible impacts on contrast and decoding grade.

Is ISO 15416:2025 mandatory?

Not automatically for all companies. On the other hand, it becomes essential as soon as it is included in specifications, quality procedures, industry standards or regulated environments.

Should I update my barcode checker?

Yes, in most cases, a software update is required to integrate the new ISO 15416:2025 calculations.

Why does the same code produce different results?

Because the calculation method evolves. The printed code may be identical, but its evaluation may change depending on the version of the standard used.

Which sectors are covered by ISO 15416:2025?

All sectors that use 1D barcodes for traceability, identification, logistics or compliance are concerned, including industry, healthcare, logistics, agri-food and medical devices.