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1.1 This test method covers the determination of ash in the range 0.001–0.180 mass %, from distillate and residual fuels, gas turbine fuels, crude oils, lubricating oils, waxes, and other petroleum products, in which any ash-forming materials present are normally considered to be undesirable impurities or contaminants (Note 1). The test method is limited to petroleum products which are free from added ash-forming additives, including certain phosphorus compounds (Note 2).
Note 1—In certain types of samples, all of the ash-forming metals are not retained quantitatively in the ash. This is particularly true of distillate oils, which require a special ash procedure in order to retain metals quantitatively.
| Author | ASTM |
|---|---|
| Editor | ASTM |
| Document type | Standard |
| Format | File |
| Confirmation date | 2009-01-01 |
| ICS | 75.080 : Petroleum products in general
|
| Number of pages | 4 |
| Replace | ASTM D482-12 |
| Set | ASTMVOL0501 |
| Year | 2013 |
| Document history | ASTM D482-12 |
| Country | USA |
| Keyword | ASTM 482;ASTM D482;ASTM D482;10.1520/D0482-13 |