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Significance and Use
5.2 This test method has two uses. One is to visually screen wastes being received at the laboratory to identifying discrepancies between the waste, manifest, and historical descriptions. The other use is to visually examine soil and water samples while they are being collected. This information, along with professional judgment during sample collection, can be used to increase the knowledge of the site contamination by increasing or reducing the number of samples collected based on visible indication of contamination or lack of visible indication of contamination. For example, if a soil or groundwater sample is collected “up gradient” of the area of known or suspected contamination to obtain site background concentrations, and the sample appears contaminated, the up gradient area can be relocated during that sampling event. Visual observation could also show that the sampling parameters need to be increased or decreased. This may reduce or eliminate the need for additional sampling trips to the field.
1.1 This test method is used to identify wastes by describing certain physical properties. It has been developed as a rapid but effective means for visually screening wastes when received in the laboratory or during collection at the sampling site.
1.2 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. Specific hazard and warning information is given in 9.1.6.
ICS Number Code 13.030.40 (Installations and equipment for waste disposal and treatment)
UNSPSC Code 77100000(Environmental management)
ASTM D4979-12, Standard Test Method for Physical Description Screening Analysis in Waste, ASTM International, West Conshohocken, PA, 2012, www.astm.orgBack to Top