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Accreditation, Approvals and Recognitions
International Standards for Interlaboratory Testing
CTS is committed to helping organizations achieve and maintain excellence in measurement quality through interlaboratory testing. Meeting this commitment requires that we establish high standards in all aspects of our business: adhering to proven test design principles; selecting the best possible test materials; maintaining test integrity; providing responsive customer service; providing accurate, concise, and meaningful reports; and strictly protecting the confidentiality of our customers. Our own activities must be governed by the highest possible quality standards. CTS has been accredited by ANSI-ASQ National Accreditation Board / ANAB to ISO/IEC 17043, "Conformity Assessment - General Requirements for Proficiency Testing" since 2014
. This is the international guideline for proficiency testing providers.
SCOPE OF ACCREDITATION TO ISO/IEC 17043:2010
Role of Subcontractors
Various aspects of a proficiency testing scheme may, from time to time, be performed by an external provider. When this occurs, the activity is placed with an Approved Supplier and Collaborative Testing Services is responsible for this work.
Acceptance for Proficiency Testing
The CTS interlaboratory testing programs are recognized by several organizations in North America including: the American Association for Laboratory Accreditation (A2LA); the American Society of Crime Laboratory Directors Laboratory Accreditation Board (ASCLD/LAB); the National Voluntary Laboratory Accreditation Program (NVLAP); ANSI-ASQ National Accreditation Board/ANAB; National Aerospace Defense Contractors Accreditation Program; United Kingdom Accreditation Service; and the Standards Council of Canada. Memorandums of Understanding exist between these organizations and many others worldwide. Participants should always contact the appropriate organization to determine which CTS tests meet your specific accreditation/registration requirements.