
ASTM D 7759/D7759M : 2021
Current
The latest, up-to-date edition.

Standard Guide for Nuclear Surface Moisture and Density Gauge Calibration
Hardcopy , PDF
English
03-06-2021
Committee |
D 18
|
DocumentType |
Guide
|
Pages |
17
|
PublisherName |
American Society for Testing and Materials
|
Status |
Current
|
Supersedes |
1.1Procedure A—This guide describes the process and objective of formulating the mathematical relationship between the density system count of a nuclear surface moisture and density gauge and the corresponding wet density value of the density standard upon which the density system response was observed.
1.2Procedure B—This guide describes the process and objective of comparing the wet density measured by a nuclear surface moisture and density gauge and the corresponding density value of the density standard upon which the density system response was observed.
1.3This guide describes the process and objective of the verification of the measurements of a nuclear surface moisture and density gauge.
1.4Procedure A—This guide describes the process and objective of formulating the mathematical relationship between the water content system count of a nuclear surface moisture and density gauge and the corresponding water mass per unit volume value of the water content standard upon which the water content system response was observed.
1.5Procedure B—This guide describes the process and objective of comparing the water mass per unit volume measured by a nuclear surface moisture and density gauge and the corresponding water mass per unit volume of the corresponding water content standard upon which the water content system response was observed.
1.6This guide describes the process and objective of the verification of the measurements of a nuclear surface moisture and density gauge.
1.7This guide describes two mathematical processes by which the gauge measurement precision may be computed or measured.
1.8This guide offers guidance for developing and reporting estimates of uncertainties in measurements made with gauges that have undergone calibration and verification.
1.9All observed and calculated values shall conform to the guide for significant digits and rounding established in Practice D6026.
1.10Units—The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system are not necessarily exact equivalents; therefore, to ensure conformance with the standard, each system shall be used independently of the other, and values from the two systems shall not be combined. Within the text of this standard, SI units appear first followed by the inch-pound (or other non-SI) units in brackets.
1.10.1Reporting of test results in units other than SI shall not be regarded as nonconformance with this guide.
1.11This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.
1.12This guide offers an organized collection of information or a series of options and does not recommend specific course of action. This document cannot replace education or experience and should be used in conjunction with professional judgment. Not all aspects of this guide may be applicable in all circumstances. This ASTM standard is not intended to represent or replace the standard of care by which the adequacy of a given professional service must be judged, nor should this document be applied without consideration of a project’s many unique aspects. The word “Standard” in the title of this document means only that the document has been approved through the ASTM consensus process.
1.13This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
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