ASTM D6839-21a
- standard by ASTM International, 05/01/2021
- Standard Test Method for Hydrocarbon Types, Oxygenated Compounds, Benzene, and Toluene in Spark Ignition Engine Fuels by Multidimensional Gas Chrom
- Category: ASTM
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Full Description
1.1''This test method covers the quantitative determination of saturates, olefins, aromatics, and oxygenates in spark-ignition engine fuels by multidimensional gas chromatography. Each hydrocarbon type can be reported either by carbon number (see Note 1) or as a total.
Note 1:''There can be an overlap between the C9 and C10 aromatics; however, the total is accurate. Isopropyl benzene is resolved from the C8 aromatics and is included with the other C9 aromatics.
1.2''This test method is not intended to determine individual hydrocarbon components except benzene and toluene.
1.3''This test method is divided into two parts, Part A and Part B.
1.3.1''Part A is applicable to the concentration ranges for which precision (Table 10 and Table 11) has been obtained:
| Property | Units | Applicable range |
| Total aromatics | Volume % | 19.32 to 46.29 |
| Total saturates | Volume % | 26.85 to 79.31 |
| Total olefins | Volume % | 0.40 to 26.85 |
| Oxygenates | Volume % | 0.61 to 9.85 |
| Oxygen Content | Mass % | 2.01 to 12.32 |
| Benzene | Volume % | 0.38 to 1.98 |
| Toluene | Volume % | 5.85 to 31.65 |
| Methanol | Volume % | 1.05 to 16.96 |
| Ethanol | Volume % | 0.50 to 17.86 |
| MTBE | Volume % | 0.99 to 15.70 |
| ETBE | Volume % | 0.99 to 15.49 |
| TAME | Volume % | 0.99 to 5.92 |
| TAEE | Volume % | 0.98 to 15.59 |
1.3.1.1''This test method is specifically developed for the analysis of automotive motor gasoline that contains oxygenates, but it also applies to other hydrocarbon streams having similar boiling ranges, such as naphthas and reformates.
1.3.2''Part B describes the procedure for the analysis of oxygenated groups (ethanol, methanol, ethers, C3 to C5 alcohols) in ethanol fuels containing an ethanol volume fraction between 50 % and 85 % (1
Product Details
- Published:
- 05/01/2021
- Number of Pages:
- 17
- File Size:
- 1 file , 360 KB
- Redline File Size:
- 2 files , 860 KB
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- This product is unavailable in Russia, Ukraine, Belarus
Document History
ASTM D6839-21a
ASTM D6839-21
ASTM D6839-18
ASTM D6839-17
ASTM D6839-16
ASTM D6839-15
ASTM D6839-02(2007)
ASTM D6839-02
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