ISO/ASTM 51539:2005

INTERNATIONAL ISO/ASTM
STANDARD 51539
Second edition
2005-05-15
Guide for use of radiation-sensitive
indicators
Guide pour l’utilisation d’indicateurs sensibles aux rayonnements
Reference number
ISO/ASTM 51539:2005(E)
© ISO/ASTM International 2005

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ISO/ASTM51539:2005(E)
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ii © ISO/ASTM International 2005 – All rights reserved

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ISO/ASTM51539:2005(E)
Contents Page
1 Scope . 1
2 Referenced documents . 1
3 Terminology . 1
4 Significance and use . 1
5 Selection of indicators . 2
6 Application . 2
7 Limitations of use . 2
8 Keywords . 2
Bibliography . 3
© ISO/ASTM International 2005 – All rights reserved iii

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ISO/ASTM51539:2005(E)
Foreword
ISO(theInternationalOrganizationforStandardization)isaworldwidefederationofnationalstandardsbodies
(ISO member bodies). The work of preparing International Standards is normally carried out through ISO
technical committees. Each member body interested in a subject for which a technical committee has been
established has the right to be represented on that committee. International organizations, governmental and
non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the
International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.
Draft International Standards adopted by the technical committees are circulated to the member bodies for
voting. Publication as an International Standard requires approval by at least 75% of the member bodies
casting a vote.
ASTM International is one of the world’s largest voluntary standards development organizations with global
participation from affected stakeholders. ASTM technical committees follow rigorous due process balloting
procedures.
A project between ISO and ASTM International has been formed to develop and maintain a group of
ISO/ASTM radiation processing dosimetry standards. Under this project, ASTM Subcommittee E10.01,
Dosimetry for Radiation Processing, is responsible for the development and maintenance of these dosimetry
standards with unrestricted participation and input from appropriate ISO member bodies.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. Neither ISO nor ASTM International shall be held responsible for identifying any or all such patent
rights.
International Standard ISO/ASTM 51539 was developed by ASTM Committee E10, Nuclear Technology and
Applications, through Subcommittee E10.01, and by Technical Committee ISO/TC 85, Nuclear energy.
This second edition cancels and replaces the first edition (ISO/ASTM 51539:2002), which has been
technically revised.
iv © ISO/ASTM International 2005 – All rights reserved

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ISO/ASTM51539:2005(E)
Standard Guide for
1
Use of Radiation-Sensitive Indicators
This standard is issued under the fixed designation ISO/ASTM 51539; the number immediately following the designation indicates the
year of original adoption or, in the case of revision, the year of last revision.
1. Scope forRadiationProcessingatEnergiesbetween300keVand
25 MeV
1.1 This guide covers procedures for using radiation-
51702 Practice for Dosimetry in a Gamma Irradiation Fa-
sensitive indicators (referred to hereafter as indicators)in
cility for Radiation Processing
radiation processing. These indicators may be labels, papers,
51939 Practice for Blood Irradiation Dosimetry
inks or packaging materials which undergo a visual change
2
51940 Guide for Dosimetry for Sterile Insect Release Pro-
when exposed to ionizing radiation (1-5).
grams
1.2 The purpose for using indicators is to determine visually
2.3 International Commission on Radiation Units and
whether or not a product has been irradiated, rather than to
4
Measurements (ICRU) Reports:
measure different dose levels.
ICRU Report 60 Fundamental Quantities and Units for
1.3 Indicators are not dosimeters and shall not be used as a
Ionizing Radiation
substitute for proper dosimetry. Information about dosimetry
systems for radiation processing is provided in other ASTM
3. Terminology
and ISO/ASTM documents (see ISO/ASTM Guide 51261).
3.1 Definitions:
1.4 This standard does not purport to address all of the
3.1.1 dosimetry system—system used for determining ab-
safety concerns, if any, associated with its use. It is the
sorbed dose, consisting of dosimeters, measurement instru-
responsibility of the user of this standard to establish appro-
ments and their associated reference standards, and procedures
priate safety and health practices and determine the applica-
for the system’s use.
bility of regulatory limitations prior to use.
3.1.2 indicator—see radiation-sensitive indicator.
2. Referenced documents 3.1.3 process load—volume of material with a specified
3 product loading configuration irradiated as a single entity.
2.1 ASTM Standards:
3.1.4 radiation-sensitive indicator—material such as coated
E 170 Terminology Relating to Radiation Measurements
orimpregnatedadhesive-backedsubstrate,ink,coatingorother
and Dosimetry
3
materials which may be affixed to or printed on the process
2.2 ISO/ASTM Standards:
loads, and which undergoes a visual change when exposed to
51204 Practice for Dosimetry in Gamma Irradiation Facili-
ionizing radiation.
ties for Food Processing
3.1.4.1 Discussion—This visual change may be as observed
51261 Guide for Selection and Calibration of Dosimetry
with the unaided eye or with an eye aid such as an optical filter.
Systems for Radiation Processing
3.1.4.2 Discussion—In the past, radiation-sensitive indica-
51431 Practice for Dosimetry in Electron Beam and X-ray
tors have been referred to by different names (1-5) including
(Bremsstrahlung) Irradiation Facilities for Food Process-
label dosimeters, label indicators, indicator labels, dose indi-
ing
cators, and radiation monitoring labels.ASTM Subcommittee
51608 Practice for Dosimetry in an X-ray (Bremsstrahlung)
E10.01 considers a label dosimeter to be fundamentally differ-
Facility for Radiation Processing
ent from an indicator, and intends to define a label dosimeter
51
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