(a) Weights and measures that are traceable to the United States prototype standards supplied by the federal government, or approved as being satisfactory by the National Institute of Standards and Technology (NIST), shall be the state primary standards of weights and measures, and shall be maintained in such calibration as prescribed by the NIST.
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Terms Used In Tennessee Code 47-26-904

  • NIST: means the National Institute of Standards and Technology which is an agency of the United States department of commerce. See Tennessee Code 47-26-902
  • Primary standards: means the physical standards of the state that serve as the legal reference from which all other standards and weights are derived. See Tennessee Code 47-26-902
  • Secondary standards: means the physical standards that are traceable to the primary standards through comparisons, using acceptable laboratory procedures, and used in the enforcement of weights and measures laws and regulations. See Tennessee Code 47-26-902
  • State: means state of Tennessee. See Tennessee Code 47-26-902
  • United States: includes the District of Columbia and the several territories of the United States. See Tennessee Code 1-3-105
(b) The primary standards shall be kept in a place designated by the commissioner and approved by NIST and shall not be removed from such place except for repairs or calibration.
(c) The primary standards shall be used only in verifying the secondary standards and for scientific purposes.
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