https://kpt-bj.com/astm-d4452-d4452m-22-standard-practice-for-x-ray-radiography-of-soil-samples-1188876753.html
ASTM D4452/D4452M-22 - Standard Practice for X-Ray Radiography of Soil Samples
1.1 This practice covers the determination of the quality of soil samples in thin wall tubes or of extruded soil cores by X-ray radiography. 1.2 This practice...