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Significance and Use
This practice is intended as a solution to the difficulty of obtaining reproducible test results from heterogeneous samples.
This practice works best with multilayered liquids, but can also be applied to samples with solid particles that are sufficiently small in size to be suspended in an emulsion.
The emulsified/suspended sample can be used for all bulk property testing such as microwave digestion/inductively coupled argon plasma (ICAP), ion chromatography, heat of combustion, ash content, water, nonvolatile residue, and pH. It may be prudent to retain a portion of the sample in its original, multiphase form for some types of analyses.
1.1 This practice covers the generation of a single-phase suspension or emulsion from multiphase samples which are primarily liquid in order to facilitate sample preparation, transfer, and analysis.
1.2 This practice is designed to keep a multiphase fluid sample in an emulsified/suspended state long enough to take a single, composite sample that is representative of the sample as a whole. The sample may reform multiple layers after standing.
1.3 The emulsion/suspension generated by following this practice can be used only for analytical procedures designed for the total sample and procedures not significantly affected by the emulsifier or the presence of an emulsion/suspension.
1.4 This practice assumes that a representative sample of not more than 1 L has been obtained.
1.5 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.6 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.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
D4057 Practice for Manual Sampling of Petroleum and Petroleum Products
D4177 Practice for Automatic Sampling of Petroleum and Petroleum Products
EPA StandardSW846 Test Methods for Evaluating Solid Waste, Physical/Chemical Methods Available from the Environmental Protection Agency, 401 M Street, SW, Washington, DC 20460.
ICS Number Code 13.060.30 (Sewage water)
|Link to Active (This link will always route to the current Active version of the standard.)|
ASTM D5761-96(2012), Standard Practice for Emulsification/Suspension of Multiphase Fluid Waste Materials, ASTM International, West Conshohocken, PA, 2012, www.astm.orgBack to Top