Excerpt from Measurement Assurance Programs, Vol. 2: Development and Implementation The discussion is approached in the context of the assumption that the tie to defined units or national standards is accomplished via a tie to nbs. Participation in a measurement assurance program can satisfy this tie where systematic error is evaluated via measurements made in the participating laboratory on an nbs transfer standard and where it can be shown that the measurement process is continuously in a state of statistical control. This in no way implies that measurement assurance cannot be attained without formal participation in an nbs sponsored program, but the presentation is made more concrete in this context. The formulation of measurement assurance techniques for all measurement situations is not within the scope of this document. Obviously, such matter is best handled on a subject basis. The dearth of suitable documentation for specific measurement disciplines serves as a motivating factor in the development of this guide which describes statistical procedures and analyses that are generally pertinent to measurement assurance. It is hoped that the reader will be able to adapt the philosophy and techniques contained herein to his own particular measurement needs. The material in this document is largely statistical in nature because of the measurement assurance approach to quantifying both the random and systematic errors that are generated by a measurement process. It should be recognized, however, that measurement assurance is not achieved by statistical techniques alone but by the totality of procedures such as correct measurement practice, adherence to recommended procedures, control of environmental factors and estimation of process parameters that relate the output of the measurement system to national standards. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.