... ismoved until 100 wires have passed an index mark, andthe pitch is calculated. For number 5 to number 50sieves the number of wires is counted over a distance of100 mm. The standard uncertainty ... elastic663Volume 102, Number 6, November–December 1997Journal of Research of the National Institute of Standards and Technologymodulus for most common gage materials. An examina-tion of a number of handbooks ... covers a number of calibration methods over thelast 30 years. An analysis of this data gives a standarddeviation of 0.040 m with 240 degrees of freedom.Since these measurements span a number...