Non-destructive testing—Image quality of radiographs—Part 4:Experimental evaluation of image quality values and image quality tables
IDT ISO 19232-4:2013
全国无损检测标准化技术委员会(SAC/TC 56)
GB/T 23901的本部分规定了像质值和像质表的确定方法。
本部分适用于射线照相检测时像质值和像质表的实验评价。当GB/T 23901.3要求的像质计不适用于检测时（如像质计材料的衰减系数与被检材料的衰减系数相差超过30%），宜做曝光实验以确定可接受的像质值。以曝光实验评价确定的像质值适用于相同透照条件下检测工件。
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