M00000855
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ISO/ASTM 51940 3rd Edition, April 15, 2013 Guide for dosimetry for sterile insects release programs
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Availability date: 07/13/2021
Description / Abstract:
This guide outlines dosimetric procedures to be followed for the
radiation-induced reproductive sterilization of live insects for
use in pest management programs. The primary use of such insects is
in the Sterile Insect Technique, where large numbers of
reproductively sterile insects are released into the field to mate
with and thus control pest populations of the same species. A
secondary use of sterile insects is as benign hosts for rearing
insect parasitoids. The procedures outlined in this guide will help
ensure that insects processed with ionizing radiation from gamma,
electron, or X-ray sources receive absorbed doses within a
predetermined range. Information on effective dose ranges for
specific applications of insect sterilization, or on methodology
for determining effective dose ranges, is not within the scope of
this guide.
NOTE 1—Dosimetry is only one component of a total quality
assurance program to ensure that irradiated insects are adequately
sterilized and fully competitive or otherwise suitable for their
intended purpose.
This guide provides information on dosimetry for the irradiation
of insects for these types of irradiators: selfcontained
dry-storage 137Cs or 60Co irradiators,
self-contained low-energy X-ray irradiators (maximum processing
energies from 150 to 300 keV), large-scale gamma irradiators, and
electron accelerators (electron and X-ray modes).
NOTE 2—Additional, detailed information on dosimetric procedures
to be followed in installation qualification, operational
qualification, performance qualification, and routine product
processing can be found in ISO/ASTM Practices 51608 (X-ray
[bremsstrahlung] facilities processing at energies over 300 keV),
51649 (electron beam facilities), 51702 (large-scale gamma
facilities), and 52116 (self-contained dry-storage gamma
facilities), and in Ref (1)2
(self-contained X-ray facilities).
The absorbed dose for insect sterilization is typically within
the range of 20 to 600 Gy.
This guide refers, throughout the text, specifically to
reproductive sterilization of insects. It is equally applicable to
radiation sterilization of invertebrates from other taxa (for
example, Acarina, Gastropoda) and to irradiation of live insects or
other invertebrates for other purposes (for example, inducing
mutations), provided the absorbed dose is within the range
specified in 1.3.
This guide also covers the use of radiation-sensitive indicators
for the visual and qualitative indication that the insects have
been irradiated.
This document is one of a set of standards that provides
recommendations for properly implementing and utilizing dosimetry
in radiation processing and describes a means of achieving
compliance with the requirements of ASTM Practice E2628. It is
intended to be read in conjunction with ASTM E2628.
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 and
health practices and determine the applicability of regulatory
limitations prior to use.
2 The boldface numbers in parentheses refer to the
bibliography at the end of this standard.