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[PDF] ASTM E2677 – 20 gratis

Fecha de publicación: 01/02/2020 Standard Test Method for Estimating Limits of Detection in Trace Detectors for Explosives and Drugs of Interest ASTM E2677 – 20

[PDF] ASTM C131/C131M – 20 gratis

Fecha de publicación: 15/02/2020 Standard Test Method for Resistance to Degradation of Small-Size Coarse Aggregate by Abrasion and Impact in the Los Angeles Machine ASTM C131/C131M – 20

[PDF] ASTM D6391 – 11(2020) gratis

Fecha de publicación: 15/02/2020 Standard Test Method for Field Measurement of Hydraulic Conductivity Using Borehole Infiltration ASTM D6391 – 11(2020)