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SA�TLI\G PROCEDURES Au e�mplin� (AS) o of f of the rocedure, soil samples are collected from Guttinos samples provide a In, this p are removed from the ground. Such provide auger flights as they however, they do not Provide general indicai°fnorsubsurface they Prooalde°samples from discrete depths - undisturbed samples, lit -Barrel Sampling (SS) - (ASTM Specific ation D-1586-67) S,procedure, a 0--inch O.D., split barrel sampler In. the split -barrel sampling p y Bated blows is driven into the soil a distance of8 inches by means of ofStandard of a 140-pound hammer falling 30 inches. of ce is obtained by counting the number wa of the Penetration R esistanThis value Provides hammer over the final 12 inches of driving. density of cohesionless qualitative indication of the in -place relative however, soils. The indicasince many factors can tion is qualitative only, and direct s i nificantly affect the Standard Penetration Resistance different drill rigs, g correlation of results and hammer -rod -spoon assemblies should not be made. drilling procedutained by drill crews res, a Shelby Tuie Sam lin Procedures (ST) - (ASTM S ecification D-1587-67) procedure, a thin -walled, steel seamless tube In tip Shelby tube sampling ushed hydraulically into the soil and a witl � sharp cutting edge is p procedure is generally relatively undisturbed sample is obtained. This p employed in coh s soils. Giddings Sampler (GS) e of sampling device consists of 5-ft sections of thin-walled This typ 5-ft tubing which are capa$ecauserofraecontinuousnslot in the sampling tubes, maximum increments. ion °f sampler allows field determinatstratification boundaries lingdepth withinthe 5n the Pf t containerization of soil samples from any P -interval. STS Consultants, Ltd. r=.