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Message:
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When using the ASTM standards, they specifically tell you the density is not to be used for acceptance or rejection. See E446-98 paragraph 8.11. Density has always been an issue for discussion for the discontinuities but what if one void is filled with a substance and one void is all air, both the same size? You would reject the one for density but it is not truly any worse than the other. Discretion is always to be used by the interpreter when making assesments according to the casting reference radiographs but he should be fair and use the specs as intended and use the guidlines they spell out.
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Information
RT - Radiographic Testing
