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ASTM E1893-15(2021)
Standard Guide for Selection and Use of Portable Radiological Survey Instruments for Performing In Situ Radiological Assessments to Support Unrestricted Release from Further Regulatory Controls
Name übersetzen
NORM herausgegeben am 1.2.2021
Informationen über die Norm:
Bezeichnung normen: ASTM E1893-15(2021)
Ausgabedatum normen: 1.2.2021
SKU: NS-1018271
Zahl der Seiten: 27
Gewicht ca.: 81 g (0.18 Pfund)
Land: Amerikanische technische Norm
Kategorie: Technische Normen ASTM
Kategorie - ähnliche Normen:
Die Annotation des Normtextes ASTM E1893-15(2021) :
Keywords:
ICS Number Code 17.240 (Radiation measurements)
Ergänzende Informationen
| Significance and Use | ||||||||||||||||||||||||||||||||||||||||||
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4.1?The purpose of this standard is to provide the user information and guidance for selecting and using instrumentation that will provide measurement results that can be compared to criteria for unrestricted use. 4.2?Use of this standard will provide greater assurance that the measurements obtained will be technically and administratively sufficient for making decisions regarding completion of decontamination and/or demolition/removal activities. 4.3?Use of this standard will provide greater assurance that the measurements obtained will be technically and administratively sufficient to meet all applicable regulatory requirements for unrestricted release of a component for recycle or reuse, or for unrestricted release of a remaining surface or area. |
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| 1. Scope | ||||||||||||||||||||||||||||||||||||||||||
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1.1?This standard provides recommendations on the selection and use of portable instrumentation that is responsive to levels of radiation that are close to natural background. These instruments are employed to detect the presence of residual radioactivity that is at, or below, the criteria for release from further regulatory control of a component to be salvaged or reused, or a surface remaining at the conclusion of decontamination and/or decommissioning. 1.2?The choice of these instruments, their operating characteristics and the protocols by which they are calibrated and used will provide adequate assurance that the measurements of the residual radioactivity meet the requirements established for release from further regulatory control. 1.3?This standard is applicable to the in situ measurement of radioactive emissions that include: 1.3.1?alpha 1.3.2?beta (electrons) 1.3.3?gamma 1.3.4?characteristic x-rays 1.3.5?The measurement of neutron emissions is not included as part of this standard. 1.4?This standard dose not address instrumentation used to assess residual radioactivity levels contained in air samples, surface contamination smears, bulk material removals, or half/whole body personnel monitors. 1.5?This standard does not address records retention requirements for calibration, maintenance, etc. as these topics are considered in several of the referenced documents. 1.6?Non-SI units are used and appropriate for this guide as they are industry standard. Mathematical equivalents may be provided in parentheses. 1.7?This 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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| 2. Referenced Documents | ||||||||||||||||||||||||||||||||||||||||||
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