ASTM D4420 Determination of Aromatics in Finished Gasoline by Gas Chromatography
1. Scope
1.1 This test method provides for the determination of benzene, toluene, C8, C9 and heavier aromatics, and total aromatics in finished motor gasoline. It is also applicable to gasoline blending components.
NOTE 1 - For analysis of gasolines for benzene and toluene, solely, Test Method D3606 can be used.
1.2 This test method is applicable to the following concentration ranges, in liquid volume percent, for the individual aromatics listed above: benzene, 0.1 to 5; toluene, 1 to 20; C8, 3 to 25; C9 and heavier, 5 to 30, and total aromatics, 10 to 80.
1.3 It has not been determined whether this test method is applicable to gasoline containing oxygenates; for example, ethers and alcohols.
1.4 Results are reported to the nearest 0.1 % by liquid volume.
1.5 The values stated in SI units are to be regarded as the standard.
1.6 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. For specific precautionary statements see Sections 6.1 through 6.8 and 7.1.
2. Referenced Documents
2.1 ASTM Standards:
D3606 Test Method for Determination of Benzene and Toluene in Finished Motor and Aviation Gasoline by Gas Chromatography
D4057 Practice for Manual Sampling of Petroleum and Petroleum Products
D4307 Practice for Preparation of Liquid Blends for Use as Analytical Standards
E 260 Practice for Packed Column Gas Chromatography
