Standard Test Method for Water in Petroleum Products and Bituminous Materials by Distillation

ASTM D95

Standard Test Method for Water in Petroleum Products and Bituminous Materials by Distillation
The material to be tested is heated under reflux with a water-immiscible solvent, which co-distills with the water in the sample. Condensed solvent and water are continuously separated in a trap, the water settling in the graduated section of the trap and the solvent returning to the still.

ASTM D4006

Standard Test Method for Water in Crude Oil by Distillation
The sample is heated under reflux conditions with a water immiscible solvent which co-distills with the water in the sample. Condensed solvent and water are continuously separated in a trap—the water settles in the graduated section of the trap, and the solvent returns to the distillation flask.

IP 74

Petroleum products and bituminous materials - Determination of water - Distillation method
This International Standard specifies a method for determination of water up to 25 % in petroleum products, bitumens, tars and products derived from these materials, excluding emulsions, by the distillation method. The specific products considered during the development of this test method are listed in Table 3.
This international Standard may be used to determine water content in excess of 25 %. However, no precision data has been determined at levels greater than 25 %. Volatile water-soluble material, if present, is measured as water.

IP 358

Crude petroleum - Determination of water - Distillation method
This International Standard specifies a method for determining water in crude oil by distillation. The precision data have only been determined for water contents up to 1 %

ISO 9029

Crude petroleum -- Determination of water -- Distillation method
The precision data of this procedure have only been determined for water contents up to 1 % (V/V). Includes principle, apparatus, solvent, calibration and recovery test, sampling, procedure, expression of results, precision and test report. The distillation apparatus is shown in figures 1 and 2. The precision of the method is shown in figure 3. The sample handling is described in annex A.

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