norma-chilena-panda-NCh-3261-2012-depositos-de-relave-control-de-compactacion-con-penetrometro-dynamico-ligero.pdf Jun 3, 2022
NF-P-94-105-Soils-Investigation-and-Testing-Measuring-Compaction-Quality-Method-using-Variable-Energy-Dynamic-Penetrometer-April-2012-French-Standard.pdf Apr 1, 2012