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  2. Certified reference materials - Wikipedia

    en.wikipedia.org/wiki/Certified_reference_materials

    Green Tea standard reference. Certified reference materials (CRMs) are 'controls' or standards used to check the quality and metrological traceability of products, to validate analytical measurement methods, or for the calibration of instruments. [1] A certified reference material is a particular form of measurement standard.

  3. Certificate of analysis - Wikipedia

    en.wikipedia.org/wiki/Certificate_of_analysis

    A certificate of analysis (COA) is a formal laboratory-prepared document that details the results of (and sometimes the specifications and analytical methods for) one or more laboratory analyses, signed—manually or electronically—by an authorized representative of the entity conducting the analyses. This document gives assurances to the ...

  4. Reference materials for stable isotope analysis - Wikipedia

    en.wikipedia.org/wiki/Reference_materials_for...

    The δ values and absolute isotope ratios of common reference materials are summarized in Table 1 and described in more detail below. Alternative values for the absolute isotopic ratios of reference materials, differing only modestly from those in Table 1, are presented in Table 2.5 of Sharp (2007) [1] (a text freely available online), as well as Table 1 of the 1993 IAEA report on isotopic ...

  5. Gold standard (test) - Wikipedia

    en.wikipedia.org/wiki/Gold_standard_(test)

    In medicine and medical statistics, the gold standard, criterion standard, [1] or reference standard [2] is the diagnostic test or benchmark that is the best available under reasonable conditions. [3] It is the test against which new tests are compared to gauge their validity, and it is used to evaluate the efficacy of treatments. [1]

  6. Canadian Reference Materials - Wikipedia

    en.wikipedia.org/wiki/Canadian_Reference_Materials

    Canadian Reference Materials (CRM) are certified reference materials of high-quality and reliability produced by the National Metrology Institute of Canada – the National Research Council Canada. The NRC Certified Reference Materials program is operated by the Measurement Science and Standards portfolio and provides CRMs for environmental ...

  7. Mill test report (metals industry) - Wikipedia

    en.wikipedia.org/wiki/Mill_test_report_(metals...

    A mill test report (MTR) and often also called a certified mill test report, certified material test report, mill test certificate (MTC), inspection certificate, certificate of test, or a host of other names, is a quality assurance document used in the metals industry that certifies a material's chemical and physical properties and states a product made of metal (steel, aluminum, brass or ...

  8. This Body Type Is Linked to an Increased Risk of Developing ...

    www.aol.com/lifestyle/body-type-linked-increased...

    Related: Shark Tank's Barbara Corcoran Recalls Caregiving for Her Mom with Alzheimer’s: 'Grieving in Slow Motion' (Exclusive) Alzheimer’s is the most common type of dementia, the U.S. Centers ...

  9. List of GOST standards - Wikipedia

    en.wikipedia.org/wiki/List_of_GOST_standards

    GOST R, or Russian certification system, is a subset of GOST standards that is valid only in the territory of the Russian Federation, in contrast to the GOST standards, used across all CIS countries, including Russia. GOST R 1.5-2012: Standardization in Russian Federation. National Standards. Rules of structure, drafting, presentation and ...

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