Standard Practice for Collection and Handling of Soils Obtained in Core Barrel Samplers for Environmental Investigations

Importancia y uso:

5.1 Often during environmental investigations, soils are analyzed after being collected from the surface, the vadose zone (Terminology D653), and sometimes from below the groundwater table to identify and quantify the presence of a chemical contaminant. A contaminant is a substance that is typically hazardous and either is not normally present or that occurs naturally but is of an uncharacteristically high concentration (Guide D4687). A three-dimensional spatial array of samples can often provide information as to the source and route(s) of migration of the contaminant. The resultant information is used to direct remedial and corrective actions or can be used for monitoring purposes. Obtaining a soil sample with a core barrel sampler involves driving this device into the ground and then retrieving it for sample processing. Several methods for advancing a core barrel are generally acceptable (for example, Test Method D1586; Practices D1587, D3550, and D6151; Guides D5784, D5875, D5876, D6169, and D6282). Drilling methods that use drilling fluids (liquids or air) should be avoided because they are more susceptible to cross-contamination (Guide D6286) (see 6.1.6).

5.2 If samples are to be collected for the determination of per- and poly-fluorinated alkyl substances (PFAS), all sampling equipment should be made of fluorine-free materials. Other considerations for PFAS sampling may exist but are beyond the scope of this standard.

Subcomité:

D34.01.03

Referida por:

D6169_D6169M-21, D6604-00R22, D4547-20, D6914_D6914M-16R24, D6232-21, D8170-20, D5092_D5092M-16R24

Volúmen:

11.04

Número ICS:

13.080.01 (Soil quality in general)

Palabras clave:

contaminants; core barrel samplers; soil corer; split-barrel, ring-lined barrel; subsurface soil sampling; thin-walled tube;