ASTM D4006 - 11(2012)e1

    Standard Test Method for Water in Crude Oil by Distillation

    Active Standard ASTM D4006 | Developed by Subcommittee: D02.02

    Book of Standards Volume: 05.02


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    Significance and Use

    4.1 A knowledge of the water content of crude oil is important in the refining, purchase, sale, or transfer of crude oils.

    4.2 This test method may not be suitable for crude oils that contain alcohols that are soluble in water. In cases where the impact on the results may be significant, the user is advised to consider using another test method, such as Test Method D4928 (API MPMS Chapter 10.9).

    1. Scope

    1.1 This test method covers the determination of water in crude oil by distillation.

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

    1.3 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 warning statements, see 6.1 and A1.1.


    2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.

    ASTM Standards

    D95 Test Method for Water in Petroleum Products and Bituminous Materials by Distillation (API MPMS Chapter 10.5)

    D473 Test Method for Sediment in Crude Oils and Fuel Oils by the Extraction Method (API MPMS Chapter 10.1)

    D665 Test Method for Rust-Preventing Characteristics of Inhibited Mineral Oil in the Presence of Water

    D1796 Test Method for Water and Sediment in Fuel Oils by the Centrifuge Method (Laboratory Procedure) (API MPMS Chapter 10.6)

    D4057 Practice for Manual Sampling of Petroleum and Petroleum Products (API MPMS Chapter 8.1)

    D4177 Practice for Automatic Sampling of Petroleum and Petroleum Products (API MPMS Chapter 8.2)

    D4928 Test Method for Water in Crude Oils by Coulometric Karl Fischer Titration (API MPMS Chapter 10.9)

    E123 Specification for Apparatus for Determination of Water by Distillation

    API Standards

    MPMSChapter10.1 Test Method for Sediment in Crude Oils and Fuel Oils by the Extraction Method (ASTM Test Method )

    MPMSChapter10.4 Determination of Water and/or Sediment in Crude Oil by the Centrifuge Method (Field Procedure)

    MPMSChapter10.5 Test Method for Water in Petroleum Products and Bituminous Materials by Distillation (ASTM Test Method )

    MPMSChapter10.6 Test Method for Water and Sediment in Fuel Oils by the Centrifuge Method (Laboratory Procedure) (ASTM Test Method )

    MPMSChapter10.9 Test Method for Water in Crude Oils by Coulometric Karl Fischer Titration (ASTM Test Method )

    MPMSChapter8.1 Manual Sampling of Petroleum and Petroleum Products (ASTM Practice )

    MPMSChapter8.2 Automatic Sampling of Petroleum and Petroleum Products (ASTM Practice )


    ICS Code

    ICS Number Code 75.040 (Crude petroleum)

    UNSPSC Code

    UNSPSC Code 15101508(Crude oil)


    DOI: 10.1520/D4006

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