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ASTM C 1270 Document Information:
Title
Standard Practice for Detection Sensitivity Mapping of In-Plant Walk-Through Metal Detectors
ASTM International
Publication Date:
Dec 10, 1997
Scope:
This standard practice covers a procedure for determining the weakest
detection path through the
portal aperture and the worst-case orthogonal orientation of metallic
test objects. It results in
detection sensitivity maps, which model the detection zone in terms
related to detection
sensitivity and identify the weakest detection paths. Detection
sensitivity maps support
sensitivity adjustment and performance evaluation procedures (see
Practices C 1269 and C 1309).
NOTE 1 - Unsymmetrical metal objects possessing a primary longitudinal
component, such as handguns
and knives, usually have one particular orientation that produces the
weakest detection signal. The
orientation and the path through the detector aperture where the
weakest response is produced may
not be the same for all test objects, even those with very similar
appearance.
NOTE 2 - In the case of multiple specified test objects or for test
objects that are orientation
sensitive, it may be necessary to map each object several times to
determine the worst-case test
object or orientation, or both.
This practice is one of several developed to assist operators of
walk-through metal detectors with
meeting the metal detection performance requirements of the
responsible regulatory authority. (See
Appendix X2)
This practice is neither intended to set performance levels, nor limit
or constrain operational
technologies.
This practice does not address safety or operational issues associated
with the use of walk-through
metal detectors.
The values stated in SI units are to be regarded as the standard. The
values given in parentheses
are for information only.
Keywords:
- entry control
- metal detection
- metal detector
- physical security
- personnel screening
- special nuclear material
- walk-through metal detector
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