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Standard Practice for Preparation of Sediment Samples for Chemical Analysis
Automaticky přeložený název:
Standardní praxe pro přípravu sedimentu vzorků pro chemickou analýzu
NORMA vydána dne 15.6.2010
Označení normy: ASTM D3976-92(2010)
Poznámka: NEPLATNÁ
Datum vydání normy: 15.6.2010
Kód zboží: NS-25576
Počet stran: 3
Přibližná hmotnost: 9 g (0.02 liber)
Země: Americká technická norma
Kategorie: Technické normy ASTM
Keywords:
chemical analysis, nonvolatile constituents, preparation, sediment samples, semivolatile, volatile, Fresh water, Marine environments, Chemical analysis--water applications, Field testing--water, Nonvolatile matter content, Occluded water removal, Sample preparation--water applications, Sampling water analysis applications, Sediment sampling, Semi-volatile organic/inorganic compounds, Specimen preparation (for testing)--water testing, Volatile matter content--water, Waterborne sediment
Significance and Use | ||||||||||
The chemical analysis of sediments, collected from such locations as streams, rivers, ponds, lakes, and oceans can provide information of environmental significance. Sediment samples are inherently heterogeneous in that they contain occluded water in varying and unpredictable amounts and may contain foreign objects or material not ordinarily considered as sediment, the inclusion of which would result in inaccurate analysis. Standard methods for separating foreign objects to facilitate homogenization will minimize errors due to poor mixing and inclusion of extraneous material. Standardized procedures for drying provide a means for reporting analytical values to a common dry weight basis. |
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1. Scope | ||||||||||
1.1 This practice describes standard procedures for preparation of test samples (including the removal of occluded water and moisture) of field samples collected from locations such as streams, rivers, ponds, lakes, and oceans. 1.2 These procedures are applicable to the determination of volatile, semivolatile, and nonvolatile constituents of sediments. 1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.4 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. For a specific precautionary statement, see Note 3. |
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2. Referenced Documents | ||||||||||
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