Guidelines for Evaluating and Expressing the Uncertainty of NIST Measurement Results Appendix D D.1 Terminology D.2 Identification of uncertainty components D.3 Equation (A-2) D.4 Measurand defined by the measurement method; characterization of test methods; simple calibration D.5 tp and the quantil...

Guidelines for Evaluating and Expressing the Uncertainty of NIST Measurement Results Table B.1 - Value of tp() from the t-distribution for degrees of freedom that defines an interval - tp() to + tp() that encompasses the fraction p of the distribution Degrees of freedom Fraction p in percent 68.27 (...

Guidelines for Evaluating and Expressing the Uncertainty of NIST Measurement Results Appendix B Coverage Factors B.1 This appendix summarizes a conventional procedure, given by the Guide [2] and Dietrich [10], intended for use in calculating a coverage factor k when the conditions of the Central Lim...

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Testimony of Dr. William D. Phillips NIST Fellow National Institute of Standards and Technology Technology Administration U.S. Department of Commerce Before the Committee on Science Subcommittee on Environment, Technology, and Standards U.S. House of Representatives "Views on Science Policy of the N...