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1.1 ,These digital reference images illustrate various categories, types, and severity levels of discontinuities occurring in steel castings that have section thicknesses of 2 ,in. (50.8 ,mm) to less than 41/2 ,in. (114 ,mm). The digital reference images are an adjunct to this standard and must be purchased separately from ASTM International, if needed (see 2.3). Categories and severity levels for each discontinuity type represented by these digital reference images are described in 1.2.
Note 1: ,The basis of application for these reference images requires a prior purchaser supplier agreement of radiographic examination attributes and acceptance criteria as described in Sections 4, 6, and 7 of this standard.