What ISO 10360 13 and VDI VDE 2634 Prove About a 3D Scanner

The short answer is that ISO 10360-13 and VDI/VDE 2634 provide standardized evidence of a 3D scanner's performance under defined test conditions. They help a buyer distinguish a measured specification from an unsupported accuracy claim. They also give manufacturers and users a common basis for acceptance testing and periodic reverification.

They do not prove that the scanner will deliver the same error on every production part, surface, feature, operator setup, or measurement volume. That conclusion requires application validation in addition to standardized equipment testing.

The most useful way to read a specification is therefore: the standard establishes how the equipment performance was tested; the certificate records the configuration and results; the production study proves whether the complete process is suitable for the intended inspection. When the testing is performed by a calibration laboratory accredited to ISO/IEC 17025:2017, the laboratory's competence and traceability framework add confidence to the result, provided the relevant activity is within its accredited scope.
 

Why Both Standards Appear on 3D Scanner Specifications

ISO 10360 is a family of standards for acceptance and reverification testing of coordinate measuring systems. ISO 10360-13:2021 addresses optical 3D coordinate measuring systems. Its public scope states that it verifies performance when measuring lengths as specified by the manufacturer and provides tests that users can apply for periodic reverification.

VDI/VDE 2634 is an earlier and still widely referenced German guideline series for optical 3D measuring systems. Its parts distinguish different ways of acquiring and combining data. Part 2 applies to area-scanning systems that measure an object in a single elementary view. Part 3 addresses systems that transform multiple views into one object coordinate system. That distinction matters for handheld and tracking scanners because a complete part is normally reconstructed from many views rather than one exposure.

The two documents are related but not interchangeable labels. A data sheet that says only "VDI/VDE 2634" leaves an important question unanswered: which part was used? Likewise, "ISO 10360" identifies a series, not the exact optical 3D procedure. The complete designation, edition, test configuration, stated maximum permissible error, and certificate should be read together.

For an industrial 3D inspection program, this standards information is valuable because it establishes a controlled starting point. It does not remove the need to define the inspection task, tolerance, datum strategy, software settings, and decision rule.
 

What ISO 10360 13 Evaluates

ISO 10360-13 specifies acceptance tests for a newly supplied or commissioned optical 3D coordinate measuring system and reverification tests for equipment already in service. The public table of contents groups its performance testing around distortion characteristics, probing-system characteristics, and volumetric length-measurement error within a concatenated measurement volume.

In practical terms, the standard requires the system to measure calibrated artifacts in prescribed positions or orientations. The resulting deviations are compared with the manufacturer's stated maximum permissible errors. This creates a reproducible answer to a focused question: did the tested system, in the stated configuration and conditions, meet the performance limits declared for it?

The scope includes an important qualification. The surface characteristics of the scanned object, including glossiness and color, must be restricted to a cooperative range. This prevents the laboratory result from being interpreted as proof that every optical surface will behave identically. A dark polished casting, a translucent molded part, and a matte calibrated artifact can present different optical conditions even when their dimensions are similar.

The test is also configuration-specific. Measurement mode, working volume, tracker arrangement, scale bar, photogrammetry setup, software version, filtering rules, environmental conditions, and artifact placement can affect the reported result. A useful certificate identifies enough of these conditions for the user to understand what was actually evaluated.
 

What VDI VDE 2634 Evaluates

VDI/VDE 2634 was developed to provide practical acceptance and reverification methods for optical 3D measuring systems. It uses calibrated artifacts such as planes, spheres, and length standards that can be captured in much the same way as ordinary workpieces.

Part 2 focuses on a single elementary view. Its performance characteristics include probing behavior, sphere-spacing behavior, and flatness measurement. These tests examine how the sensor reconstructs known form, size, distance, or planar geometry within its measurement field.

Part 3 extends the logic to multiple-view systems. It is relevant when the sensor or object is repositioned and separate views are transformed into a common coordinate system through targets, tracking, measured axes, or registration procedures. In this situation, the final result depends not only on one captured field but also on how the system maintains scale and spatial consistency across views.

That is why Part 3 frequently appears on specifications for handheld laser scanners and optical tracking systems. It addresses the architecture closer to their normal measuring process. It still describes a standardized equipment test, however, not every possible production workflow.

What a Passing Result Actually Proves

A passing result supports several defensible statements, as long as they are written with the tested conditions attached.

· The identified system was evaluated using a recognized test procedure.

· The tested performance characteristics remained within the stated maximum permissible errors.

· The results were obtained from calibrated artifacts and a documented measurement configuration.

· The test can serve as a baseline for acceptance, maintenance, and later reverification.

· Comparable tests can reveal whether the system's performance has changed after service, repair, impact, relocation, or a major configuration update.

It is important to distinguish an error limit from an individual test result. A manufacturer's MPE is the boundary the equipment is required not to exceed under the stated conditions. The certificate should show the observed results and the limit used for conformity. Reading only the smallest number on a brochure hides that distinction.

The standard name alone also does not establish metrological traceability. Traceability comes through a documented chain of calibrations and stated uncertainties connecting the reference artifacts to recognized standards. The issuing laboratory, its accreditation scope, the artifacts used, and the measurement uncertainty therefore remain part of the evidence.

Calibration certificates document the tested system, method, and traceable results
 

What the Standards Do Not Prove

Neither standard turns one laboratory result into a universal promise for every application. They do not, by themselves, prove that:

· every mesh point lies within the published accuracy value;

· resolution, point spacing, and accuracy have the same numerical meaning;

· the same result will be obtained on every color, gloss level, texture, or translucent material;

· the stated error applies outside the tested measurement volume or without the tested accessories;

· every operator, fixture, target layout, scan path, and alignment produces equivalent results;

· a CAD alignment or GD&T feature was constructed correctly;

· the measurement uncertainty is small enough for a specific part tolerance;

· the complete production process is repeatable and reproducible across shifts and sites.

These are not gaps that make standardized testing less useful. They define the boundary between equipment verification and application validation. Standardized tests create the reference point. A representative-part study then connects that reference point to the factory decision.

NIST research published in 2024 illustrates why this distinction matters. In a sensitivity study of structured-light systems, the ISO 10360-13 length tests were more sensitive to the modeled system parameters than the VDI/VDE 2634 Part 2 length tests. Even the ISO tests did not detect every modeled parameter with high sensitivity. A finite test plan is designed to reveal defined performance characteristics; it is not an exhaustive simulation of every error source.
 

Accuracy Metrics Are Not Interchangeable

Industrial scanner data sheets often list several numbers close together. Each describes a different aspect of performance.

A scanner can have fine point spacing without having the same numerical length accuracy. It can also perform strongly on local form while accumulated spatial error becomes more relevant over a large volume. This is why current specifications increasingly report several metrics instead of compressing system behavior into one headline number.
 

How ISO IEC 17025 Fits into the Evidence

ISO 10360-13 and VDI/VDE 2634 describe equipment test methods. ISO/IEC 17025 addresses the competence, impartiality, and consistent operation of testing and calibration laboratories. The standards play complementary roles.

An accredited laboratory is expected to control personnel competence, environmental conditions, methods, reference equipment, traceability, uncertainty, and reporting. Accreditation is granted for a defined scope, so the user should confirm that the relevant optical 3D measurement activity is covered. ISO/IEC 17025 accreditation belongs to the laboratory; it is not a blanket certification of every scanner or every measurement made with it.

SCANOLOGY is the overseas subsidiary of SCANTECH (Hangzhou) Co., Ltd. and sells the company's industrial product line. Its CAL/CERT Center has received CNAS accreditation to ISO/IEC 17025:2017. The official description identifies calibration equipment that includes coordinate measuring equipment, step gauges, ball-bar artifacts, standard spheres, gauge blocks, laser interferometry, and dedicated optical 3D calibration devices. This infrastructure supports traceable acceptance and calibration work for the relevant scanner families.
 

How Current SCANOLOGY Specifications Use the Standards

The current SIMSCAN-S Gen2 product page states that performance is evaluated under ISO/IEC 17025 accreditation based on ISO 10360-13, VDI/VDE 2634 Part 3, and JJF 1951. It reports accuracy, volumetric accuracy, sphericity, and flatness as separate characteristics. That presentation helps a quality engineer match the specification to the feature being inspected rather than treating one number as the complete performance description.

SIMSCAN-S Gen2 capturing dense surface data on an automotive body component

The KSCAN-E page cites the same three performance-evaluation references. Its multiple scanning modes and integrated photogrammetry make configuration records especially important: the certificate and work instruction should state the mode, scale-control arrangement, and measurement volume used for the job.

KSCAN-E used for portable industrial measurement in a production environment

The current TrackScan Sharp-Z page describes ISO 10360-13 compliance and presents four-metric control covering accuracy, volumetric accuracy, spherical form, and flat form. For a tracking system used across large volumes, reading the volume-dependent values is more informative than relying on the local accuracy figure alone.

These examples show the practical benefit of named standards: the published numbers are tied to defined evaluation methods. Product selection still begins with the workpiece. Compact, detail-rich parts, mixed-size jobs, and large tracked volumes place emphasis on different metrics and system configurations.
 

A Practical Qualification Workflow

A quality team can convert standards evidence into a production-ready process with the following sequence.

1. Define the decision. Record the feature, tolerance, datum reference frame, acceptance rule, and consequence of a wrong decision.

2. Match the measuring volume. Confirm the largest part extent, access direction, required scanner movement, and whether scale control or optical tracking is included.

3. Review the exact claim. Identify the standard, part, edition, MPE expression, tested configuration, and any surface or environmental restrictions.

4. Examine the certificate. Check serial numbers, software and firmware, measurement mode, accessories, artifact traceability, actual results, uncertainty statement, date, and laboratory accreditation scope.

5. Run site acceptance checks. Measure a suitable calibrated artifact after installation and compare the result with the agreed acceptance criteria.

6. Validate representative parts. Include the actual material, finish, size range, geometry, fixture, targets, scan path, alignment, and feature-extraction method.

7. Study repeatability and reproducibility. Use multiple independent setups, operators, and trials that reflect routine work.

8. Control analysis settings. Lock the CAD revision, datum construction, filters, mesh parameters, feature fits, report template, and software version. DefinSight can keep scanning, data processing, scan-to-CAD comparison, and reporting within a controlled metrology workflow.

9. Define reverification triggers. Include scheduled checks as well as checks after impact, repair, calibration, relocation, hardware replacement, or measurement-affecting software changes.

The result is a layered evidence chain: the standard supports equipment performance, the certificate records traceable test results, and the production study demonstrates fitness for the assigned inspection.
 

Procurement and Audit Checklist

Before approving a scanner or its measurement process, confirm the following:

· The complete standard designation and edition are stated.

· The applicable VDI/VDE 2634 part is identified.

· The certificate covers the quoted scanner, tracker, and accessories.

· The tested scanning mode and measurement volume match the planned use.

· The MPE and actual measured results are both available.

· The reference artifacts and their traceability are documented.

· The issuing laboratory's relevant accreditation scope is available.

· Surface and environmental conditions are recorded.

· Interim checks and periodic reverification are defined.

· Representative-part validation and Gauge R&R have been completed for acceptance-critical features.
 

Conclusion

ISO 10360-13 and VDI/VDE 2634 provide a disciplined way to evaluate optical 3D measuring equipment. They replace vague accuracy claims with defined artifacts, procedures, performance characteristics, and acceptance limits. When the work is carried out within an accredited laboratory framework, the resulting certificate can provide a traceable baseline for equipment acceptance and reverification.

That baseline is strongest when it is connected to the real inspection process. Review the exact standard and configuration, validate representative parts, measure repeatability and reproducibility, control the software recipe, and monitor the system over time. Standards then do what they are designed to do: establish credible equipment performance while giving the quality team a sound foundation for application-specific decisions.
 

Frequently Asked Questions

Does ISO 10360 13 mean a scanner is accurate on every part

No. It demonstrates specified optical 3D system performance under defined test conditions. Actual part capability also depends on surface behavior, geometry, measurement volume, setup, alignment, analysis, and operator practice.

Is VDI VDE 2634 Part 3 the same as ISO 10360 13

No. They are related performance-evaluation documents, but they are not identical. Part 3 is focused on multiple-view optical 3D systems, while ISO 10360-13 provides an international acceptance and reverification framework for optical 3D coordinate measuring systems. A certificate should identify the exact procedure used.

Which standard should buyers look for

Look for the standard relevant to the scanner architecture and the complete test evidence behind the claim. For a current optical 3D coordinate measuring system, ISO 10360-13 is particularly important. VDI/VDE 2634 Part 3 remains useful evidence for multi-view system evaluation when it is stated with a documented configuration and result.

Does ISO IEC 17025 certify the scanner

ISO/IEC 17025 accredits a laboratory for activities within a defined scope. The scanner's certificate records the test or calibration result produced by that laboratory. The accreditation and the equipment result should be reviewed together, but they are not the same claim.

Can standards testing replace Gauge R and R

No. Standards testing verifies equipment characteristics with controlled artifacts. Gauge R&R evaluates variation in the complete process across repeated setups, operators, and representative production parts. Both forms of evidence are useful for an acceptance-critical workflow.

Why can scanners tested to the same standard have different accuracy values

The standard defines the test method; it does not require every design to have the same MPE. Manufacturers can declare different performance limits for different systems, modes, volumes, and configurations. The observed results are then evaluated against the applicable stated limits.

How often should a scanner be reverified

Set the interval from risk, usage, environment, stability history, customer requirements, and the manufacturer's procedures. Reverify after events that may affect measurement performance, and use interim check artifacts to detect change between formal calibrations.