ASTM D8003-15a
Standard Test Method for Determination of Light Hydrocarbons and Cut Point Intervals in Live Crude Oils and Condensates by Gas Chromatography

Standard No.

ASTM D8003-15a

Release Date

2015

Published By

American Society for Testing and Materials (ASTM)

Status

Be replaced

Replace By

ASTM D8003-15a(2021)

Latest

ASTM D8003-22

Scope

5.1 This test method determines methane (nC₁) to hexane (nC₆), cut point carbon fraction intervals to nC₂₄ and recovery (nC₂₄+) of live crude oils and condensates without depressurizing, thereby avoiding the loss of highly volatile components and maintaining sample integrity. This test method provides a highly resolved light end profile which can aid in determining and improving appropriate safety measures and product custody transport procedures. Decisions in regards to marketing, scheduling and processing of crude oils may rely on light end compositional results.

5.2 Equation of state calculations can be applied to variables provided by this method to allow for additional sample characterization.

1.1 This test method covers the determination of light hydrocarbons and cut point intervals by gas chromatography in live crude oils and condensates with VPCR₄ (see Note 1) up to 5008201;kPa at 37.8 °C.

Note 1: As described in Test Method D6377.

1.2 Methane (C₁) to hexane (nC₆) and benzene are speciated and quantitated. Samples containing mass fractions of up to 0.5 % methane, 2.0 % ethane, 10 % propane, or 15 % isobutane may be analyzed. A mass fraction with a lower limit of 0.001 % exists for these compounds.

1.3 This test method may be used for the determination of cut point carbon fraction intervals (see 3.1.2) of live crude oils and condensates from initial boiling point (IBP) to 391 °C (nC₂₄). The nC₂₄ plus fraction is reported.

1.4 Dead oils or condensates sampled in accordance with 12.1 may also be analyzed.

1.5 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

1.5.1 Exception—Where there is no direct SI equivalent such as tubing size.

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.

ASTM D8003-15a Referenced Document

• ASTM D1265 Standard Practice for Sampling Liquefied Petroleum (LP) Gases (Manual Method)
• ASTM D3700 Standard Practice for Obtaining LPG Samples Using a Floating Piston Cylinder
• ASTM D4307 Standard Practice for Preparation of Liquid Blends for Use as Analytical Standards
• ASTM D5002 Standard Test Method for Density and Relative Density of Crude Oils by Digital Density Analyzer
• ASTM D6299 Standard Practice for Applying Statistical Quality Assurance and Control Charting Techniques to Evaluate Analytical Measurement System Performance
• ASTM D6377 Standard Test Method for Determination of Vapor Pressure of Crude Oil: VPCR_x (Expansion Method)
• ASTM D6792 Standard Practice for Quality Management Systems in Petroleum Products, Liquid Fuels, and Lubricants Testing Laboratories
• ASTM E1510 Standard Practice for Installing Fused Silica Open Tubular Capillary Columns in Gas Chromatographs

ASTM D8003-15a history

• 2022 ASTM D8003-22 Standard Test Method for Determination of Light Hydrocarbons and Cut Point Intervals in Live Crude Oils and Condensates by Gas Chromatography
• 2021 ASTM D8003-15a(2021) Standard Test Method for Determination of Light Hydrocarbons and Cut Point Intervals in Live Crude Oils and Condensates by Gas Chromatography
• 2015 ASTM D8003-15a Standard Test Method for Determination of Light Hydrocarbons and Cut Point Intervals in Live Crude Oils and Condensates by Gas Chromatography
• 2015 ASTM D8003-15 Standard Test Method for Determination of Light Hydrocarbons and Cut Point Intervals in Live Crude Oils and Condensates by Gas Chromatography