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ASTM C1270-97(2003)

Historical Reaffirmation

Standard Practice for Detection Sensitivity Mapping of In-Plant Walk-Through<brk /> Metal Detectors

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1.1 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 C1269 and C1309).

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.

1.2 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)

1.3 This practice is neither intended to set performance levels, nor limit or constrain operational technologies.

1.4 This practice does not address safety or operational issues associated with the use of walk-through metal detectors.

1.5 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.


SDO ASTM: ASTM International
Document Number C1270
Publication Date Dec. 10, 1997
Language en - English
Page Count 10
Revision Level 97(2003)
Supercedes
Committee C26.12
Publish Date Document Id Type View
Dec. 10, 1997 C1270-97 Revision
Jan. 1, 2021 C1270-97R21 Reaffirmation
Jan. 1, 2012 C1270-97R12 Reaffirmation
Dec. 10, 1997 C1270-97R03 Reaffirmation