This method is for the determination of the API gravity of crude petroleum and petroleum products having a Reid vapor pressure of 26 psi (180 kPa) or less using a glass hdyrometer. Gravities are determined at 60°F (15.56°C) or converted to values at 60F using standard tables. The standard tables are not applicable to nonhydrocarbons or essentially pure hydrocarbons such as aromatics.
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| Hold Times, Preservatives, Preps, Collection, Analytical & Documentation | |
|---|---|
| Holding Time: | None specified in the method. |
| Preservatives: | None specified in the method. |
| Required Preps: | None |
| Collection Method: | Grab sampling |
| Analytical Methodology: | Glass hydrometer |
| Documentation: | 
D-287
|
| Analyte | Formula | CAS Number | Detection Limit | |
|---|---|---|---|---|
* 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.