ASTM D4530-15
Standard Test Method for Determination of Carbon Residue (Micro Method)

Standard No.

ASTM D4530-15

Release Date

2015

Published By

American Society for Testing and Materials (ASTM)

Status

Be replaced

Replace By

ASTM D4530-15(2020)

Latest

ASTM D4530-15(2020)

Scope

5.1 The carbon residue value of the various petroleum materials serves as an approximation of the tendency of the material to form carbonaceous type deposits under degradation conditions similar to those used in the test method, and can be useful as a guide in manufacture of certain stocks. However, care needs to be exercised in interpreting the results.

5.2 This test method offers advantages of better control of test conditions, smaller samples, and less operator attention compared to Test Method D189, to which it is equivalent.

5.3 Up to twelve samples may be run simultaneously, including a control sample when the vial holder shown in Fig. 1 is used exclusively for sample analysis.

1.1 This test method covers the determination of the amount of carbon residue (see Note 1) formed after evaporation and pyrolysis of petroleum materials under certain conditions and is intended to provide some indication of the relative coke forming tendency of such materials.

1.2 The test results are equivalent to the Conradson Carbon Residue test (see Test Method D189).

Note 1: This procedure is a modification of the original method and apparatus for carbon residue of petroleum materials, where it has been demonstrated that thermogravimetry is another applicable technique.2 However, it is the responsibility of the operator to establish operating conditions to obtain equivalent results when using thermogravimetry.

1.3 This test method is applicable to petroleum products that partially decompose on distillation at atmospheric pressure and was tested for carbon residue values of 0.108201;% to 308201;% (m/m). Samples expected to be below 0.10 weight8201;% (m/m) residue should be distilled to remove 908201;% (V/V) of the flask charge (see Section 9). The 108201;% bottoms remaining is then tested for carbon residue by this test method.

1.4 Ash-forming constituents, as defined by Test Method D482, or non-volatile additives present in the sample will add to the carbon residue value and be included as part of the total carbon residue value reported.

1.5 Also in diesel fuel, the presence of alkyl nitrates, such as amyl nitrate, hexyl nitrate, or octyl nitrate, causes a higher carbon residue value than observed in untreated fuel, which may lead to erroneous conclusions as to the coke-forming propensity of the fuel. The presence of alkyl nitrate in the fuel may be detected by Test Method D4046.

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

ASTM D4530-15 Referenced Document

• ASTM D189 Standard Test Method for Conradson Carbon Residue of Petroleum Products
• ASTM D4046 Standard Test Method for Alkyl Nitrate in Diesel Fuels by Spectrophotometry
• ASTM D4057 Standard Practice for Manual Sampling of Petroleum and Petroleum Products
• ASTM D4177 Standard Practice for Automatic Sampling of Petroleum and Petroleum Products
• ASTM D482 Standard Test Method for Ash from Petroleum Products
• ASTM E1 Standard Specification for ASTM Thermometers
• ASTM E133 Standard Specification for Distillation Equipment

ASTM D4530-15 history

• 2020 ASTM D4530-15(2020) Standard Test Method for Determination of Carbon Residue (Micro Method)
• 2015 ASTM D4530-15 Standard Test Method for Determination of Carbon Residue (Micro Method)
• 2011 ASTM D4530-11 Standard Test Method for Determination of Carbon Residue (Micro Method)
• 2007 ASTM D4530-07 Standard Test Method for Determination of Carbon Residue (Micro Method)
• 2006 ASTM D4530-06e1 Standard Test Method for Determination of Carbon Residue (Micro Method)
• 2006 ASTM D4530-06 Standard Test Method for Determination of Carbon Residue (Micro Method)
• 2003 ASTM D4530-03 Standard Test Method for Determination of Carbon Residue (Micro Method)
• 2000 ASTM D4530-00 Standard Test Method for Determination of Carbon Residue (Micro Method)