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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 (API MPMS Chapter 10.9).
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 and .
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
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)
E123 Specification for Apparatus for Determination of Water by Distillation
API StandardsMPMS Chapter 10.1 Test Method for Sediment in Crude Oils and Fuel Oils by the Extraction Method (ASTM Test Method ) MPMS Chapter 10.4 Determination of Water and/or Sediment in Crude Oil by the Centrifuge Method (Field Procedure) MPMS Chapter 10.5 Test Method for Water in Petroleum Products and Bituminous Materials by Distillation (ASTM Test Method ) MPMS Chapter 10.9 Test Method for Water in Crude Oils by Coulometric Karl Fischer Titration (ASTM Test Method ) MPMS Chapter 8.1 Manual Sampling of Petroleum and Petroleum Products (ASTM Practice ) MPMS Chapter 8.2 Automatic Sampling of Petroleum and Petroleum Products (ASTM Practice )
ICS Number Code 75.040 (Crude petroleum)
UNSPSC Code 15101508(Crude oil)
|Link to Active (This link will always route to the current Active version of the standard.)|
ASTM D4006-16, Standard Test Method for Water in Crude Oil by Distillation, ASTM International, West Conshohocken, PA, 2016, www.astm.orgBack to Top