Name:
ASTM D3977-97(2013) PDF
Published Date:
01/01/2013
Status:
Active
Publisher:
ASTM International
1.2 The procedures given in these test methods are used by the Agricultural Research Service, Geological Survey, National Resources Conservation Service, Bureau of Reclamation, and other agencies responsible for studying water bodies. These test methods are adapted from a laboratory-procedure manual2 and a quality-assurance plan.3
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| Sections |
| Test Method A-Evaporation | 8 to 13 |
| Test Method B-Filtration | 14 to 19 |
| Test Method C-Wet-sieving-filtration | 20 to 25 |
1.4 Test Method A can be used only on sediments that settle within the allotted storage time of the samples which usually ranges from a few days to a few weeks. A correction factor must be applied if dissolved-solids concentration exceeds about 10 % of the sediment concentration.
1.5 Test Method B can be used only on samples containing sand concentrations less than about 10 000 ppm and clay concentrations less than about 200 ppm. The sediment need not be settleable because filters are used to separate water from the sediment. Correction factors for dissolved solids are not required.
1.6 Test Method C can be used if two concentration values are required: one for sand-size particles and one for the combination of silt and clay-size particles. The silt-clay fraction need not be settleable.
1.7 These test methods must not be confused with turbidity measurements discussed in Test Method D1889. Turbidity is the optical property of a sample that causes light rays to be scattered and absorbed; it is not an accurate measure of the mass or concentration of sediment in the sample.
1.8 These test methods contain some procedures similar to those in Test Methods D1888 which pertains to measuring particulate and dissolved matter in water.
1.9 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.
| File Size : | 1 file , 130 KB |
| Note : | This product is unavailable in Russia, Ukraine, Belarus |
| Number of Pages : | 7 |
| Published : | 01/01/2013 |
