of Petroleum and Petroleum Products (ASTM Practice. D ). MPMS Chapter Determination of Water in Crude Oil by the Distillation Method (ASTM Test. ASTM D Standard Test Method for WATER IN PETROLEUM PRODUCTS AND BITUMINOUS MATERIALS BY DISTILLATION. ASTM D Standard Test Method for Water in Petroleum Products and Bituminous Materials by Distillation.

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Vessels of, and mL nominal capacity have proved satisfactory. Water Content Oil Testing Equipment. The KF method does not suffer from the same issues and limitations associated with the other techniques described above, and a number of recent advances in titrator instrumentation and reagent formulations have further improved the accuracy and reproducibility of KF analyses.

However, due to solubility and reactivity issues described above, analysts often drastically reduce sample size, which tends to reduce the reproducibility of test results. Only representative samples obtained as speci? Understanding Oil’s Saturation Point. Thereafter, x95 major subdivision that is, 2. Ast, supplier supports Trade Assurance — A free service that protects your orders from payment to delivery.

A heater power indicator will illuminate when power is applied to the heater element. Asphalt moisture is water quantity of the asphalt sample, expressed by quality percentage. The instrument has reasonable structure, beautiful shape and safe and reliable to operate. Precision and Bias The stills and traps should be chosen to cover the range of materials and water contents expected. Current Issue Archive Advertise.

NOTE 1—Volatile water-soluble material, if present, may be measured as water. KF analysis is a versatile and robust analytical tool for water content analysis in oil samples, and can detect water in any of three states commonly found in oils.


A wide variety of asttm d95 options are available to you, such as paid samples. It is a general purpose heating mantel designed for laboratory procedures that require precise temperature control. Apparatusfor Water Content in Petroleum Products. How is the technical services on the product9 Engineer available to service machinery overseas.

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Recommended Sample Sizes for KF Analysis Sample Size Selection For both direct and indirect KF methods, sample size selection is critical for minimizing errors associated with sample weighing, transfer and injection. 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.

The condenser tube and trap must be chemically clean to ensure free drainage of water into the bottom of the trap. Volumetric or coulometric KF methods, utilizing either direct titration or the oil evaporator technique, can be used to quantify water in oil samples from trace amounts to percent.

Preferred connections are ground joints for glass and O-rings for metal to glass. Drain the cylinder thoroughly after the sample transfer and each rinsing. Individual reprints single or multiple copies of this standard may be obtained by contacting ASTM at the above address or at phonefaxor service astm.

Some of the modes by which water exists in lubricating oils can lead to catastrophic equipment failure. Furthermore, neither visual indication nor the hot plate test can be used to reliably quantify the water present.


Insert a loose cotton plug in the top of the condenser to prevent condensation of atmospheric moisture inside it.

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Note; clamp, bosshead and glassware available separately. Finding the Source of Water Contamination in Oil. Read the volume of the water in the trap to the nearest scale division. Coulometric KF In coulometric KF, the iodine needed by the KF reaction is not present in the KF reagent, but is instead generated electrochemically in situ from iodide at the anode of sstm generator electrode, a component of the coulometric titration cell Figure astk.

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Analyzing Water in Oil

Circulate cold water through the jacket of the condenser. Since its invention by German petroleum chemist Dr. In coulometry, the quantity of iodine generated corresponding to the amount of water present is calculated by the titrator on the asgm of current mA and time sec.

However, alcohols cannot be completely removed from KF reagents, because the presence of alcohol is required by the mechanism of the KF reaction.

Coulometric KF is considered an absolute method because time and current can both be accurately measured. Supplier Types Trade Assurance. Eliminate these factors before repeating the veri?

These include aldehydes, higher phenols, modified mercaptans, ketoacids, polysiloxanes, sulfides and metal oxides.

The precision when using the 2-mL trap or a 5—mL trap has not been established.