This method is for the determinaton of settleable matter from surface and saline waters, domestic and industrial wastes. Settleable matter is measured volumetrically with an Imhoff cone. For some samples, a separation of settleable and floating materials will occur and in such cases the floating materials are not measured. Many treatment plants, especially plants equipped to perform gravimetric measurements, determine non-filterable residue (suspended solids), in preference to settleable matter, to insure that floating matter is included in the analysis.
The practical lower limit of the determination is about 0.2 mL/L/hr.
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| Hold Times, Preservatives, Preps, Collection, Analytical & Documentation | |
|---|---|
| Holding Time: | 48 hours from sample collection to analysis. |
| Preservatives: | Store sample at 4°C. |
| Required Preps: | 1L HDPE or amber glass bottle |
| Collection Method: | Grab sampling |
| Analytical Methodology: | Volumetric |
| Documentation: | 
160.5
|
| Analyte | Formula | CAS Number | Detection Limit | |
|---|---|---|---|---|
| Settleable Solids | 0.2 |
mg/L/hr | ||
* The analytes and detection limits listed for each method represent the typical detection limits and analytes reported for that particular method. Keep in mind that analyte lists may vary from laboratory to laboratory. Detection limits may also vary from lab to lab and are dependent upon the sample size, matrix, and any interferences that may be present in the sample.