Reference Strains

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NCTC® vs. ATCC®

Understand the equivalence of the main culture collections

NCTC®, like ATCC®, is a global reference for culture collections. Both are registered in the WDCM (World Data Center for Microorganisms), an international database that groups strains into a unique identifier system, facilitating the comparison and sharing of information on reference strains.

In the WDCM, the same strain can have different designations depending on the collection. For example, the Escherichia coli strain NCTC® 12241 is also designated as ATCC® 25922; CIP® 76.24; DSM® 1103; CCUG® 17620; CECT® 434; depending on the culture collection.

Therefore, when using an NCTC® or ATCC® strain, you are using reference strains with the same phenotypic characteristics and genotyping. It is worth noting that technical protocols and accrediting bodies recognize all available culture collections, ensuring equivalence and compliance among them.

NCTC vs, ATCC

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Controllab has been accredited as a Certified Reference Material Producer (MRC) since 2016 by Inmetro’s General Coordination for Accreditation (CGCRE), under the PMR 0009 number. The assessment of this conformity is carried out according to the requirements established in ABNT NBR standards ISO 17034 and Inmetro, thus ensuring competence for the production of MRCs, according to the Scope of Accreditation.
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In December 2002, the Calibration Laboratory was accredited by Inmetro’s General Coordination for Accreditation (CGCRE). With this recognition, it became an integral part of the Brazilian network of accredited laboratories, under nº214. Since then, it is periodically evaluated for the maintenance and/or extension of accreditation.

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In September 2011, Controllab was accredited by Inmetro’s General Coordination for Accreditation (CGCRE) as a proficiency test provider, under nº PEP0003. Initially as part of a pilot project by Inmetro, this accreditation was based on ILAC G13: 2007 and included several clinical and hemotherapy tests. In the periodic evaluations of this accreditation, new segments and tests are included and the evaluation is now conducted according to ABNT NBR ISO/IEC 17043.

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