Significance and Use
A knowledge of the water content of petroleum products is important in the refining, purchase, sale, and transfer of products.
The amount of water as determined by this test method (to the nearest 0.05 or 0.1 volume %, depending on the trap size used) may be used to correct the volume involved in the custody transfer of petroleum products and bituminous materials.
The allowable amount of water may be specified in contracts.
1. Scope
1.1 This test method covers the determination of water in the range from 0 to 25 % volume in petroleum products, tars, and other bituminous materials by the distillation method.
Note 1—Volatile water-soluble material, if present, may be measured as water.
1.2 The specific products considered during the development of this test method are listed in Table 1. For bituminous emulsions refer to Test Method D244. For crude oils, refer to Test Method D4006 (API MPMS Chapter 10.2).
Note 2—With some types of oil, satisfactory results may be obtained from Test Method D1796 (API MPMS Chapter 10.6).
1.3 The values stated in SI units are to be regarded as the standard. The values in parentheses are for information only.
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 and health practices and determine the applicability of regulatory limitations prior to use. For specific hazard statements, see Section 6.
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
D244 Test Methods and Practices for Emulsified Asphalts
D1796 Test Method for Water and Sediment in Fuel Oils by the Centrifuge Method (Laboratory Procedure)
D4006 Test Method for Water in Crude Oil by Distillation
D4057 Practice for Manual Sampling of Petroleum and Petroleum Products
D4177 Practice for Automatic Sampling of Petroleum and Petroleum Products
D5854 Practice for Mixing and Handling of Liquid Samples of Petroleum and Petroleum Products
E123 Specification for Apparatus for Determination of Water by Distillation
API Standards
MPMSChapter10.6 Test Method for Water and Sediment in Fuel Oils by the Centrifuge Method (Laboratory Procedure) (ASTM Test Method )
Keywords
bituminous materials; distillation; petroleum products; solvent carrier liquid; water by distillation; water content; Bituminous materials/applications; Distillate fuels; Distillation--bituminous materials; Distillation--petroleum products; Water analysis--petroleum products testing ;
ICS Code
ICS Number Code 75.140 (Waxes, bituminous materials and other petroleum products)
DOI: 10.1520/D0095-05R10
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Citing ASTM Standards
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