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Reference Standard

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A material for which the true value is known. The origin of, or the transfer vehicle for, the true value of a measured quantity. Analysis can only be performed (and the true concentration for a component determined) using a reference standard with an established traceability. The highest level of reference standards originate from standardization agencies (NMi, NIST,NPL) and include items like PRMs, SRMs and Class S Weights.
Related Links
arrowNMi - Netherlands Measurement Institute
arrowNIST - National Institute of Standards and Technology)
arrowNPL - National Physical Laboratory


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