NBS Report 10-987; 19p. January 24, 1973.
In view of the future NBS three-dimensional facility, we have sought to review some of our current calibration procedures and, where appropriate, evaluate the feasibility of transfer to the new facility. In cases where it is not feasible to transfer, to upgrade our former procedures, this report is the first in a series which will be referred to as calibration procedure reports. In many cases the facts which will be presented in this series of documents are widely known but their collection into concise reports will, it is hoped, serve the purposes of: (1) acquainting other individuals in our section with the nomenclature of calibrations now, being performed, (2) serving as a focal point for discussion as to how we may either transfer or upgrade procedures, (3) permitting us to standardize many of our procedures so we may analyze our mechanical measurements to view the relative indexes of precision and, where appropriate, define new ones. Some procedures are always in a state of flux; therefore, only current calibration procedures will be emphasized. During recent months, with the installation of a computer time-sharing facility, we have adopted more automated procedures of data processing wherever possible. The advantages of this type of operation are self-evident. The methods of accomplishing this processing are varied, but a few appropriate ways will be discussed at some later date. In the specific case of the calibration of reference thread measuring wires, a version of the measurement assurance program has been adopted to assist in achieving the stated goals.