January 26, 2019


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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Asphalt moisture is water quantity of the asphalt sample, expressed by quality percentage.

Distillation 1000ml Flask Heater

Insert a loose cotton plug in the top of the condenser to prevent condensation of atmospheric moisture inside it. Toggle navigation Toggle search. Note; clamp, bosshead and glassware available separately See detailed specifications Available accessories Request a quotation More products in this subcategory. Your comments are invited either for revision of this standard or for additional standards and should be addressed to ASTM International Headquarters.

The still, trap, and condenser may be connected by any suitable method that produces a leakproof joint. Current Issue Archive Advertise.

Permission rights to photocopy the standard may also be secured from the ASTM website www. Distillation ml Flask Heater Part Number The Seta Distillation Flask Heater is a regulated heating mantel which has the capacity to accommodate a ml flask.

Sample Order Paid samples. The instrument has reasonable structure, beautiful shape and safe and reliable to operate. However, neither of these methods can detect dissolved water or reproducibly detect trace levels of emulsified water.

The distillation component of the indirect titration method ensures that the hard-to-dissolve oil samples, or those containing potentially interfering compounds, are not introduced to the titration cell, while the KF titration component of the method accurately quantifies the water content of the azeotropic vapor carried into the titration cell by the dry gas.

The blank shall be determined to the nearest scale division and used to correct the volume of water in the trap in Section Additionally, water has been known to cause certain oil additives to precipitate out, as well as to chemically attack some additives. D95 — 05 4. Originally approved in Supplier Types Trade Assurance. NOTE 3—Instead of standardizing on a particular apparatus speci? A number in parentheses indicates the year of last reapproval.


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 the generator electrode, a component of the coulometric titration cell Figure 2.

This standard has been approved for use awtm agencies of the Department of Defense. Last previous edition approved in as D95— You can ensure product safety by selecting from certified suppliers, including 42 with Other, 24 with ISO certification. Testing mositure of petroleum asphalt, coal tar or asphalt emulsion, etc.

The Seta Distillation Flask Heater is a regulated heating mantel which has the capacity to accommodate a ml flask. The end-point determination in KF titration occurs by means of bivoltametric indication.

Always apply a very thin? To minimize the problem, all apparatus must be cleaned chemically at least daily to remove surface? A gas ring burner with ports on the inside circumference shall be used with the metal still. A number of lubricating oil additives are reactive and are known to interfere with direct KF titration.

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. Thereafter, each major subdivision that is, 2. Dislodge any drops of water adhering to asttm sides of the trap with a glass or polytetra?

Modern Instrumental Methods and Techniques. Types of Titration Volumetric KF Volumetric KF proceeds in the conventional manner of a classic titration, in that the ast containing iodine is added mechanically to the solvent containing the sample by the titrator’s burette Figure 1.

Circulate cold water through the jacket of v95 condenser. High water content of lubricating oils negatively impacts the operation and longevity of the oils and the mechanical equipment components being lubricated.


Analyzing Water in Oil

Alternatively, specially preformulated KF reagents incorporating one or several of these solvents are commercially available for both volumetric and coulometric KF. HZWS-2 astm d95 petroleum products karl fischer trace water tester.

The Best Gets Aetm Temperature is adjusted by a temperature control dial. Since its invention by German petroleum chemist Dr. Volumetric KF is most accurate in the range of ppm to percent water. Coulometric KF is most accurate in the range of 1 ppm to 5 percent water. Product Uses Petroleum moisture tester: In cases of material with a low-water content when large samples must be used, a solvent-carrier liquid volume asm excess of mL may be necessary.

ASTM D Water in Petroleum Products & Bituminous Materials by Dist_

In two-component KF, the titrant contains only an alcoholic solution of iodine, while the solvent contains the other ingredients needed for the reaction. Water in oils can occur in dissolved, emulsified c95 free states.

About product and suppliers: The condenser tube and trap d9 be chemically clean to ensure free drainage of water into the bottom of the trap.

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. Furthermore, neither visual indication nor the hot plate test can be used to reliably quantify the water present.

Sample Size and Reproducibility As with any analytical technique, the sampling error in KF analysis is inversely proportional to the sample size.

When complete, discard the contents of the trap and add the volume of water as speci?

Coulometric KF is considered an absolute method because time and current can both be accurately measured.