ASTM D943 PDF

ASTM D Standard Test Method for Oxidation Characteristics of Inhibited Mineral Oils. Oxidation stability baths to meet test method ASTM D Oxidation Bath for ASTM D, IP , ASTM D, ASTM D, IP , ISO , ISO

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This standard has been approved for use d43 agencies of the Department of Defense. Safety features include low level liquid protection and over-temperature cut outs.

ASTM D Oxidation Stability Baths

Methods of test for petroleum and its products. Standard test method for oxidation characteristics of inhibited mineral oils. When an actual test sample is used, remove aatm thermometer immediately after temperature measurement is complete. Ast the syringe sampling tube through the syringe sampling tube spacer, and into the sampling tube holder, as shown in Fig.

Summary of Test Method 3. The 35 litre oil bath can accept up to six sets of glassware.

NOTE 7—Test results by this method are greatly affected by differences in sampling procedure. Rinse thoroughly with tap water until all cleaning solution is removed. Preparation of Apparatus 8. Your comments will receive careful consideration at a x943 of the responsible technical committee1, which you may attend.

A superscript epsilon e indicates an editorial change since the last revision or reapproval. Store glassware in a dry dust-free condition until ready to use. Use Test Method D when the acid number exceeds 0.

The effect of such exposure on oil life has not been determined, nor has the method precision been determined by cooperative testing. NOTE 2—Alternatively, suitably prepared catalyst coils may be purchased from a supplier. The Seta Oxidation Bath is used for quantative analysis of the tendency of oils and fuels to form sludge, acids and deposits when exposed to oxygen in the presence of metallic catalysts over extended periods. NOTE 4—As an alternative to using the sampling tube holder and sampling tube spacer, the sampling tube may be secured in position by taping or clamping to the oxygen delivery tube using a suitable adhesive tape or clamp.

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If more than two results are obtained by one or both of the laboratories, reproducibility can be calculated as indicated in 4. Test Method D is now available for sludge measurement.

Then wipe with dry absorbent cotton until all loose particles of metal and abrasive have been removed. Place the condenser over the oxygen delivery tube and test tube. NOTE 10—Beyond 10 h, oil removal causes the metal catalyst coil to be exposed to the atmosphere.

Glassware and catalysts must be ordered separately. Type Stainless Steel, 22 Gage 0. D — 02 Methods D and D use a color change to indicate the titration end point. Slide the catalyst coil over the inlet of the oxygen delivery tube.

ASTM D – 99 Standard Test Method for Oxidation Characteristics of Inhibited Mineral Oils NO_PDF

The Luer-Lok connector is preferably of elastomeric material, such as poly? Any arrangement that leads to the coil con? The correct level for water additions may, if desired, be indicated by a movable metal strip Fig. If such signs of oxidation are noted before the scheduled time for sampling for acid number, a sample may be taken then and the test discontinued if the measured acid number is 2. ASTM International takes no position respecting the validity asrm any patent d43 asserted in connection with any item mentioned in this standard.

The thermometer is held in the c943 by two? Box 70, Burlington, NJ The temperature measurement system uses a PT probe to ensure long term temperature stability without routine maintenance or re-calibration. NOTE 9—The value 2. Replace the sampling tube stopper. The mandrel shown in Fig.

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Oxidation Bath with Oxflo Controller Part Number The Seta Oxidation Bath is used for quantative analysis of the tendency of oils and 9d43 to form sludge, acids and deposits when exposed to oxygen in the presence of metallic catalysts over extended periods. The number of test hours required for the oil to reach 2. Several hours soaking in this manner often serves to loosen all adhering deposits except iron oxide.

D — 02 All dimensions are in millimetres inches. Place the sampling tube holder over the oxygen delivery tube. Soft copper wire of an equivalent grade may also be used. 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.

Your comments will receive careful consideration at a meeting of the responsible technical committee 1, which you may attend. Rinse thoroughly with tap water until all acid is removed.

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The values given in parentheses are for information only. The smaller diameter is to allow for springback of the steel wire after winding, so as to give D — 02 Notes: Individual reprints single or multiple copies of this standard may be obtained by contacting ASTM at the above address or at phonefaxor service astm.

When oxidation is proceeding rapidly in such oils, values much higher than 2.

Then withdraw 6 mL of test oil into the syringe, hold the syringe tube vertically for 15 to 20 s to allow water to settle to the bottom of the syringe tube, and adjust the sample size to 3 mL while holding the syringe vertically.