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Inter-laboratory Comparison

Controlled metrology, using inter-laboratory comparisons to assess your business performance and progress

A requirement: Evaluate your measurement quality

A solution: Register for an inter-laboratory comparison campaign (ILC) organized by Deltamu. See below for the list of current ILC and register online!

Inter-laboratory Comparison

Deltamu regularly supervises inter-laboratory comparison campaigns (ILC) to enable participants to test their measurement methods and consolidate their metrology skills.

All laboratories, accredited or not, can apply for these campaigns. Participation is anonymous, and Deltamu makes sure that each participant is given enough time to carry out the measurements. Deltamu analyses the results according to NF ISO 5725 recommendations. Each participant receives a report with the complete analysis and a detailed summary of the ILC.

Campaigns open for registration

No ILC in progress...

Still haven't found the ILC you're looking for? Send us your request, and we will get back to you if we organize an ILC that matches your requirements. Please get in touch if you need any further information, such as how campaigns are carried out, or how we deliver the results.

  • Guaranteed anonymity of results
  • One single consultant per campaign
  • ILC in dimensional metrology, 3D measurement, temperature, microbiology,…
  • 10 years of expertise in the field of inter-laboratory comparisons
  • Results analysis in accordance with ISO 5725
  • Analysis of statistically questionable values ​​with the participant
  • Support in identifying causes and in making the necessary corrections
  • Calculation of performance statistics (Z scores, En ...)

All laboratories, accredited or not, can apply for these campaigns. For the purposes of confidentiality, participants remain anonymous and are identified by a number. Deltamu organizes the campaign and appoints a coordinator for each circuit. The coordinator ensures that each participant is given the time needed to measure the objects and, where necessary, provides them with advice.

Note: Participants are regularly notified of the campaign status by email.

Deltamu analyses the results according to NF ISO 5725 recommendations. Each participant receives a report with the complete analysis and a detailed summary of the ILC. The laboratory's capability is then evaluated in accordance with EN ISO / IEC 17043 and ISO 13528 (laboratory proficiency testing by inter-laboratory comparisons). The report anonymizes the results. Any statistically questionable values (Mandel test, Cochran, Grubbs) will be analyzed between the participant and Deltamu. The aim is to understand and correct these values for effective process control.


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Kif Parechoc was impressed with the excellent level of expertise of Deltamu’s staff, in addition to their genuine desire to listen and to share their knowledge. Deltamu’s pragmatic approach helped us to improve our company’s metrological function. Based on the audit conclusions, we initiated a new management approach based on equipment inter-comparisons: a solution which fits perfectly with our current business practices. Kif Parechoc

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