ASTM E3083-17
(Terminology)Standard Terminology Relating to Radiation Processing: Dosimetry and Applications
Standard Terminology Relating to Radiation Processing: Dosimetry and Applications
SIGNIFICANCE AND USE
3.1 The purpose of this standard is to facilitate communication and promote common understanding within the professionals in radiation processing research and industry.
3.2 Unambiguous communication of concepts is crucial taking into account the relevant implications that may arise from misunderstandings with regard to equipment and materials involved in the standards dealing with any subject regarding radiation processing activities. Concepts dealing with dosimetry related to radiation processing and procedures for preparation, testing, and using dosimetry systems to determine the absorbed dose are present in all standards developed by E61 and ISO/TC85/WG3 and need to be designated by common terms and described by harmonized definitions in order to avoid misunderstandings.
SCOPE
1.1 This terminology standard lists terms and definitions related to radiation processing concepts, especially radiation dose measurements. Use of this standard, and the common terminology, will foster clearer communication, and remove ambiguity.
1.2 The use of ionizing radiation for the treatment of commercial products such as the sterilization of medical devices, the reduction of microbial contamination in food or the modification of polymers is referred to as radiation processing. The types of radiation used may be gamma radiation (typically from cobalt-60 sources), X-radiation or accelerated electrons.
1.3 This standard provides terms and definitions for dosimetry for radiation processing concepts dealing with procedures related to operational qualification, performance qualification, and routine processing that may influence absorbed dose in the products, and types of dosimetry systems that may be used during calibration or on a routine basis as part of quality assurance in commercial radiation processing of products.
1.4 When selecting terms and definitions, special care has been taken to include the terms that need to be defined, that is to say, either because the definitions are essential to the correct understanding of the corresponding concepts or because some specific ambiguities need to be addressed.
1.5 The “Discussion” appended to certain definitions offers clarification or examples to facilitate understanding of the concepts described. In certain cases, miscellaneous information is also included, for example, the units in which a quantity is normally measured, recommended parameter values, references, etc.
1.6 This 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.
1.7 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.
General Information
Relations
Standards Content (Sample)
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.
Designation: E3083 − 17
Standard Terminology Relating to
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Radiation Processing: Dosimetry and Applications
This standard is issued under the fixed designation E3083; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
INTRODUCTION
This terminology covers terms that apply to radiation processing using ionizing radiation. The
common radiation fields considered are gamma radiation, X-radiation, and electrons. This treatment
is not intended to be exhaustive but reflects special and common terms used in technology and
applicationofinteresttoCommitteeE61,specifically,termsincludedintheE61setofISO/ASTMand
ASTM standards on radiation processing.
Thisterminologyusesrecommendeddefinitionsandconceptsofquantities,withunits,forradiation
measurements as contained in the International Commission on Radiation Units and Measurements
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(ICRU) Report 85a on “Fundamental Quantities and Units for Ionizing Radiation,” October 2011.
Those terms that are defined essentially according to the terminology of ICRU Report 85a will be
followed by ICRU in parentheses. It should be noted that the units for quantities used are the latest
adoptedaccordingtotheInternationalSystemofUnits(SI).Thisterminologyalsousesrecommended
definitions of two JCGM documents, namely “International vocabulary of metrology” (VIM 2012)
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and “Guide to the expression of uncertainty in measurement” (GUM, 2008). Those terms that are
defined essentially according to the terminology of these documents are followed by either VIM or
GUM in parentheses.As far as possible, it is also intended to harmonize the definitions with those in
Terminology E170, ISO 11139, and ISO 12749-4.
It is recommended that the use of the old units for quantities with special names be avoided;
however,ifitisdeemednecessarytousethemforclarity,valuesofquantitiesshouldbeexpressedfirst
in the new units followed by values in the old units in parentheses. Table X1.1 summarizes the
relationship between the old and new units for the quantities of interest.
Aterm is boldfaced when it is defined in this standard. For some terms, text in italics is used just
before the definition to limit its field of application, for example, see activity.
1. Scope the modification of polymers is referred to as radiation pro-
cessing. The types of radiation used may be gamma radiation
1.1 This terminology standard lists terms and definitions
(typically from cobalt-60 sources), X-radiation or accelerated
related to radiation processing concepts, especially radiation
electrons.
dose measurements. Use of this standard, and the common
terminology, will foster clearer communication, and remove
1.3 This standard provides terms and definitions for dosim-
ambiguity.
etry for radiation processing concepts dealing with procedures
related to operational qualification, performance qualification,
1.2 The use of ionizing radiation for the treatment of
and routine processing that may influence absorbed dose in the
commercial products such as the sterilization of medical
products, and types of dosimetry systems that may be used
devices, the reduction of microbial contamination in food or
during calibration or on a routine basis as part of quality
assurance in commercial radiation processing of products.
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This terminology is under the jurisdiction of ASTM Committee E61 on
1.4 When selecting terms and definitions, special care has
Radiation Processing and is the direct responsibility of Subcommittee E61.01 on
Dosimetry. been taken to include the terms that need to be defined, that is
Current edition approved Oct. 1, 2017. Published November 2017. DOI:
to say, either because the definitions are essential to the correct
10.1520/E3083-17
understanding of the corresponding concepts or because some
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Available from International Commission on Radiation Units and Measure-
specific ambiguities need to be addressed.
ments (ICRU), 7910 Woodmont Ave., Suite 800, Bethesda, MD 20814.
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Document produced by Working Groups of the Joint Committee for Guides in
1.5 The “Discussion” appended to certain definitions offers
Metrology (JCGM). Available free of charge at BIPM website (http://
www.bipm.org). clarification or examples to facilitate understanding of the
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
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E3083 − 17
conceptsdescribed.Incertaincases,miscellaneousinformation 3.2 Unambiguous
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