ASTM D2425-19

Standard Test Method for Hydrocarbon Types in Middle Distillates by Mass Spectrometry
standard by ASTM International, 01/15/2019
Category: ASTM

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Description
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1.1 This test method covers an analytical scheme using the mass spectrometer to determine the hydrocarbon types present in conventional and synthesized hydrocarbons that have a boiling range of 160 °C to 343 °C (320 °F to 650 °F), 5 % to 95 % by volume as determined by Test Method D86. Samples with average carbon number value of paraffins between C₁₂ and C₁₆ and containing paraffins from C₁₀ and C₁₈ can be analyzed. This test method is intended for use with full boiling range products that contain no significant olefin content. Eleven hydrocarbon types are determined. These include: paraffins, noncondensed cycloparaffins, condensed dicycloparaffins, condensed tricycloparaffins, alkylbenzenes, indans or tetralins, or both, C_nH_2n-10 (indenes, etc.), naphthalenes, C_nH_2n-14 (acenaphthenes, etc.), C_nH_2n-16 (acenaphthylenes, etc.), and tricyclic aromatics.

Note 1: This test method was developed on Consolidated Electrodynamics Corporation Type 103 Mass Spectrometers. Operating parameters for users with a Quadrupole Mass Spectrometer are provided.

Details

Published:: 01/15/2019
Number of Pages:: 14
File Size:: 1 file , 150 KB
Redline File Size:: 2 files , 300 KB

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