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Commitment to Quality

DDL prides itself on its commitment to continual improvement to its quality system. In order to ensure a quick and flawless testing process and support a wide variety of test requirements, we continually improve our quality program in effort to offer superior service within our industry.
DDL has established a quality management system (QMS) that is managed in accordance with the requirements of ISO 17025:2005 

DDL’s Registrations & Accreditations

DDL’s Eden Prairie, MN and Irvine, CA facilities have received ISO/IEC 17025:2005 accreditation from the American Association for Laboratory Accreditation (A2LA).

ISO/IEC 17025:2005 is the international standard by which a laboratory’s commitment to quality and technical competency is evaluated and is becoming an essential standard for testing facilities serving the medical device industry. DDL achieved ISO/IEC 17025:2005 accreditation by demonstrating its laboratories are in compliance with the standard and A2LA accreditation requirements. This accreditation further reaffirms DDL’s technical competency and capability to produce precise and accurate test data that our customers can rely upon to meet their regulatory requirements.

You may download a copy of our ISO/IEC 17025:2005 scope of accreditation here:

Note: DDL has elected to permit its ISO 9001 certification to expire on June 22, 2018 without renewal. Please click here for further explanation on this decision.

DDL’s Eden Prairie and Irvine, CA laboratories are also both certified by the International Safe Transit Association (ISTA). You may download a copy of our ISTA certifications here:

Customer Feedback

One of the precepts to our quality system is understanding your needs and expectations. We can’t move forward without that critical piece. We understand your needs can change at any moment due to unforseen events and circumstances. In order to do this, we listen attentively to your needs and determine the optimal path to ensure satisfaction at every turn.

We want you to value your experience with us. To report any issues or feedback you may have in your testing or interactions with DDL, please click here to fill out and submit a customer feedback form.

Have a question about DDL’s level of Quality Assurance? Please contact us or call us at 1-800-229-4235.

DDL's Testing Locations

DDL's testing laboratories are located in Eden Prairie, MN and Irvine, CA. Learn more about the different testing services provided at each location.

View our locations »