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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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Toggle navigation Toggle search. Circulate cold water through the jacket of the condenser. These include aldehydes, higher phenols, modified mercaptans, ketoacids, polysiloxanes, sulfides and metal oxides. A number of lubricating oil asttm are reactive and are known to d995 with direct KF titration.

A wide variety of astm d95 options are available to you, such as paid samples. Finding the Source of Water Contamination in Oil. Used oils may also contain contaminants that can potentially interfere with direct KF analysis, such as trace metals, polyaromatic hydrocarbons, polychlorinated biphenyls, as well as various products of incomplete astj.

In other words, the larger the sample, the less error is introduced into the analysis by sample weighing, transfer and other handling. HZWS-2 astm d95 petroleum products karl fischer trace water tester.

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Reactivity Certain compounds in the oil will undergo interfering side reactions either with methanol or iodine components of KF reagents. This standard is subject to revision at any time by the responsible technical committee and must be reviewed every? NOTE 1—Volatile water-soluble material, if present, may be measured as water.


To minimize the problem, all apparatus must be cleaned chemically at least daily to remove surface? We have 12 months warranty, if it broken during transport, we can change a new one for you.

More frequent cleaning is recommended if the nature asm samples being run causes persistent contamination. Copyright Stanhope—Seta Limited The heating element is made of glass fibre which minimises damage to the flask in case of a slight impact between flask and heater. Understanding Oil’s Saturation Point.

Water in oils can occur in dissolved, emulsified and free states. Users of this standard are expressly advised that determination of the validity of any such patent rights, and the risk of infringement of such rights, are entirely their own responsibility.

Fundamentals of Volumetric Karl Fischer Titration. Individual reprints single or multiple copies of this standard may be obtained by contacting ASTM at the above address or at phonefaxor service astm.

Techniques for Successful KF of Oil Samples Direct Titration Sample solubility issues may be overcome by using co-solvents such as chloroform, toluene or xylene to increase the solvent capacity of conventional KF reagents in the titration cell. Last previous edition approved in as D95— Some of the modes by which water exists in lubricating oils can lead to catastrophic equipment failure.

Provide laboratory construction program design guidelines. Only representative samples obtained as speci? Strategies for Removing Water from Oil.


The blank shall be determined to the nearest scale division and used to correct the volume of water in the trap in Section Water Content Oil Testing Equipment. The s95 when using the 2-mL trap or a 5—mL trap asmt not been established. If a metal still with a removable cover is used, insert a gasket of heavy paper, moistened with solvent, between the still body and the cover.

That is, while the iodine in the KF reagent is reacting with water, there is no free iodine present in the titration cell, and a high voltage is required to maintain the set polarization current at the double platinum pin indicator electrode. 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.

Petroleum distillate Volatile spirits FIG. Modern Instrumental Methods and Techniques. Once all the water has reacted with the iodine, trace quantities of free iodine appear in the titration cell, causing a drop in voltage necessary to keep the polarization current constant, which in turn signals the end-point of the titration. In fact, we are the only supplier who can provide both the main host and accessories in China.