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About This Item

 

Full Description

1.1 This test method covers determination of the mass percent of asphaltenes as defined by insolubility in normal-heptane solvent. It is applicable to all solid and semi-solid petroleum asphalts containing little or no mineral matter, to gas oils, to heavy fuel oils, and to crude petroleum that has been topped to a cut-point of 343 °C or higher.

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

1.3 The text of this standard references notes and footnotes which provide explanatory material. These notes and footnotes (excluding those in tables and figures) shall not be considered as requirements of the standard.

1.4 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. See Section 7 for a specific hazard statement.

1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

 

Document History

  1. ASTM D3279-19

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    Standard Test Method for n-Heptane Insolubles

    • Most Recent
  2. ASTM D3279-12e1


    Standard Test Method for n-Heptane Insolubles

    • Historical Version
  3. ASTM D3279-12


    Standard Test Method for n-Heptane Insolubles

    • Historical Version
  4. ASTM D3279-07


    Standard Test Method for n-Heptane Insolubles

    • Historical Version
  5. ASTM D3279-97(2001)


    Standard Test Method for n-Heptane Insolubles

    • Historical Version
  6. ASTM D3279-97


    Standard Test Method for n-Heptane Insolubles

    • Historical Version