This method is for the determination of pH from a drinking, surface, and saline waters, domestic and industrial wastes and acid rain (atmospheric deposition). The pH is determined electrometrically using either a glass electrode in combination with a reference potential or a combination electrode.
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| Hold Times, Preservatives, Preps, Collection, Analytical & Documentation | |
|---|---|
| Holding Time: | Samples should be analyzed as soon as possible and preferably in the field at the time of sampling. |
| Preservatives: | None specified in the method. |
| Required Preps: | 50 mL HDPE or amber glass bottle |
| Collection Method: | Grab sampling |
| Analytical Methodology: | pH Meter |
| Documentation: | 
150.1
|
| Analyte | Formula | CAS Number | Detection Limit | |
|---|---|---|---|---|
| pH | 0.1 |
pH unit | ||
* 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.