Guidelines for Evaluating and Expressing the Uncertainty of NIST Measurement Results (rev. Ed. )

Guidelines for Evaluating and Expressing the Uncertainty of NIST Measurement Results (rev. Ed. ) PDF Author: Barry N. Taylor
Publisher: DIANE Publishing
ISBN: 1437915566
Category : Science
Languages : en
Pages : 25

Get Book Here

Book Description
Results of measurements and conclusions derived from them constitute much of the technical information produced by the National Institute of Standards and Technology (NIST). In July 1992 the Director of NIST appointed an Ad Hoc Committee on Uncertainty Statements and charged it with recommending a policy on this important topic. The Committee concluded that the CIPM approach could be used to provide quantitative expression of measurement that would satisfy NIST¿s customers¿ requirements. NIST initially published a Technical Note on this issue in Jan. 1993. This 1994 edition addresses the most important questions raised by recipients concerning some of the points it addressed and some it did not. Illustrations.

Guidelines for Evaluating and Expressing the Uncertainty of NIST Measurement Results (rev. Ed. )

Guidelines for Evaluating and Expressing the Uncertainty of NIST Measurement Results (rev. Ed. ) PDF Author: Barry N. Taylor
Publisher: DIANE Publishing
ISBN: 1437915566
Category : Science
Languages : en
Pages : 25

Get Book Here

Book Description
Results of measurements and conclusions derived from them constitute much of the technical information produced by the National Institute of Standards and Technology (NIST). In July 1992 the Director of NIST appointed an Ad Hoc Committee on Uncertainty Statements and charged it with recommending a policy on this important topic. The Committee concluded that the CIPM approach could be used to provide quantitative expression of measurement that would satisfy NIST¿s customers¿ requirements. NIST initially published a Technical Note on this issue in Jan. 1993. This 1994 edition addresses the most important questions raised by recipients concerning some of the points it addressed and some it did not. Illustrations.

Designs for the Calibration of Standards of Mass

Designs for the Calibration of Standards of Mass PDF Author: Joseph M. Cameron
Publisher:
ISBN:
Category : Mass (Physics)
Languages : en
Pages : 70

Get Book Here

Book Description
This report presents a collection of designs for the intercomparison of sets of weights for use in precision calibration of standards of mass. These include a number of previously unpublished designs which have an additional weight in each set to serve as the check standard for monitoring the performance of the weighing process. Also included are the classical designs of Benoit and Hayford. The complete least squares analysis is presented in integer form (i.e., with a common division) for the most widely used designs; and for the others, the standard deviations are given for various weight combinations when used as an ascending or as a descending series. Designs for sets of nominally equal objects, the 2 2 ... 1 1 ... series, the binary sequences, the 5 2 2 1 1 series, and the 5 3 2 1 1 and some miscellaneous series are given.

NIST Technical Note

NIST Technical Note PDF Author:
Publisher:
ISBN:
Category : Electronic journals
Languages : en
Pages : 60

Get Book Here

Book Description


NBS Technical Note

NBS Technical Note PDF Author:
Publisher:
ISBN:
Category : Physical instruments
Languages : en
Pages : 58

Get Book Here

Book Description


The Gauge Block Handbook

The Gauge Block Handbook PDF Author: Ted Doiron
Publisher: Createspace Independent Publishing Platform
ISBN: 9781495431944
Category : Science
Languages : en
Pages : 146

Get Book Here

Book Description
This handbook is a both a description of the current practice at the National Institute of Standards and Technology, and a compilation of the theory and lore of gauge block calibration. Most of the chapters are nearly self-contained so that the interested reader can, for example, get information on the cleaning and handling of gauge blocks without having to read the chapters on measurement schemes or process control, etc. This partitioning of the material has led to some unavoidable repetition of material between chapters. The basic structure of the handbook is from the theoretical to the practical. Chapter 1: basic concepts and definitions of length and units; Chapter 2: history of gauge blocks, appropriate definitions and a discussion of pertinent national and international standards; Chapter 3: physical characteristics of gauge blocks, including thermal, mechanical and optical properties; Chapter 4: a description of statistical process control (SPC) and measurement assurance (MA) concepts; and Chapters 5 and 6: details of the mechanical comparisons and interferometric techniques used for gauge block calibrations. Full discussions of the related uncertainties and corrections are included. Finally, the appendices cover in more detail some important topics in metrology and gauge block calibration.

NIST Research Reports

NIST Research Reports PDF Author:
Publisher:
ISBN:
Category : High technology
Languages : en
Pages : 36

Get Book Here

Book Description


Reference Materials Program

Reference Materials Program PDF Author: National Endowment for the Humanities. Division of Research Programs
Publisher:
ISBN:
Category : Reference books
Languages : en
Pages : 48

Get Book Here

Book Description


An Introduction to Computer Security

An Introduction to Computer Security PDF Author: Barbara Guttman
Publisher: DIANE Publishing
ISBN: 0788128302
Category : Computer networks
Languages : en
Pages : 289

Get Book Here

Book Description
Covers: elements of computer security; roles and responsibilities; common threats; computer security policy; computer security program and risk management; security and planning in the computer system life cycle; assurance; personnel/user issues; preparing for contingencies and disasters; computer security incident handling; awareness, training, and education; physical and environmental security; identification and authentication; logical access control; audit trails; cryptography; and assessing and mitigating the risks to a hypothetical computer system.

NISTIR.

NISTIR. PDF Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 64

Get Book Here

Book Description


Monthly Catalog of United States Government Publications

Monthly Catalog of United States Government Publications PDF Author:
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 1032

Get Book Here

Book Description