BS IEC 62963:2020 pdf free

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BS IEC 62963:2020 pdf free.Radiation protection instrumentation一X-ray computed tomography (CT) inspection systems of bottled/canned liquids.
BS IEC 62963 This document describes the technical requirements, test methods, inspection requirements,markings and labelling, and requirements on the accompanying documents, packaging,shipping and storage for X-ray security inspection systems that inspect bottled or canned liquids (hereinafter referred to as “the system”) based on X-ray computed tomography (CT).Here, the system is limited to those that feature tomographic scanning,not standard X-ray projection. This document is applicable to liquids, aerosols and gelatinous objects in
transparent or visually opaque containers. This technical performance document includes minimum or baseline performance requirements; regulators may require additional performance testing.Except where otherwise specified, tests shall be carried out within the standard test conditions shown in the third column of Table 1. For tests performed outside the standard test
conditions, the values of temperature, pressure and relative humidity shall be stated and the appropriate corrections, if any, made to give the response under reference conditions. All
tests in 4.3 shall be performed with the same values of these reference environmental conditions. Reference conditions are given in the second column of Table 1.The values in Table 1 are intended for tests performed in temperate climates. In other climates, the actual values for the test shall be stated. Similarly atmospheric pressure lower than 70 kPa may be permitted at higher altitudes. If the system is to be operate outside the environmental standard test conditions, testing shall be performed at these non-standard conditions.Place the spatial-resolution test article at the center of the scanning volume with the axis of\ the cylinder vertically upwards. Scan the central position of the article. Visually inspect the imaged test object within one of the following slice images: CT value, electron density or Zeff. A line-pair gauge with all three lines visually complete and separable from others is judged as resolvable. Record each of the resolvable line-pair gauge with code number designated in Table 4. At least codes 1 to 5 (4,0 mm to 2,0 mm) shall be entirely resolved. Such inspection shall be taken by at least 5 different persons with normal vision and at least 3 persons shall  produce the same conclusion.BS IEC 62963 pdf download.

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