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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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The mandrel shown in Fig. Determination of the oxidation stability of inhibited mineral oils the TOST test. 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 d493 use.

Therefore, use the applicable apparatus and techniques described in Practice D Insert a stopper in the Luer-Lok? Remove the coil from the mandrel, twist the free ends of the iron and copper wires together for three turns, and bend the twisted ends to conform to the shape of the spiral coil. Measure the sample temperature by a thermometer positioned in the oxidation cell by a thermometer bracket, as in Fig. Summary of Test Method 3.

Glassware and catalysts must be ordered separately. Without interrupting the oxygen? The values given in parentheses are for information only.

The overall length of the? Add a desiccant bag that has been folded lengthwise to? If the wires are uneven at one end of the coil, position the coil so that this end is down. To allow for heating of the stem portion of the thermometer above the immersion point in the upper portion of the test cell, subtract 0.

NOTE 1—Furthermore, in the course of testing a lubricant by this method, other signs of deterioration, such as sludge formation or catalyst coil corrosion, may appear that are not re? Adjust the rate of?

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D — 02 Dimensions are in millimetres inches. The test is considered to start at this point. D — 02 Methods D and D use a color change to indicate the titration end satm. Marking the upper oil level of the?

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This standard is asmt to revision at any time by the responsible technical committee and must be reviewed every? Then wipe with dry absorbent cotton until all loose particles of metal and abrasive have been removed. Before using, the interior of the new tubing should be rinsed with n-Heptane and blown dry with air.

Your comments will receive careful consideration at a meeting of the responsible technical committee 1, which you may attend. The 35 litre oil bath can accept up to six sets of glassware. Copyright Stanhope—Seta Limited An exception is where the oil is known to have a life shorter than h, the sampling is at the discretion of the operator.

Your comments will receive careful consideration at a meeting of the responsible technical committee1, which you may attend. For overnight storage less than 24 h the coil may be stored in n-Heptane.

Rinse the tube with n-Heptane to remove traces of oil and any tenacious organic residues. 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. Standard test method for oxidation characteristics of inhibited mineral oils. Using this mandrel, the iron wire is wound on a thread of Use of a very soft annealed steel wire may allow use of identical thread diameters for the two wires.

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Determination of the oxidation stability of middle-distillate fuels. NOTE 6—Under some circumstances, the level of water cannot be observed because of deposits or emulsion formation. The effect of such exposure on oil life has not been determined, nor has the method precision been determined by cooperative testing. Your comments are invited either for revision of this standard or for additional standards and should be addressed to ASTM International Headquarters.

A number in parentheses indicates the year of last reapproval. Repeat the rinsing procedure with n-Heptane and blow dry with air or nitrogen. D — 02 Notes: When oxidation is proceeding rapidly in such oils, values much higher than 2.

This can be accomplished as follows. The test method is also used for testing other oils such as hydraulic oils and circulating oils having a speci? D — 02 All dimensions are in millimetres inches.

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The sampling tube is taped or clamped to the oxygen delivery tube at a distance of approximately 25 mm 1 in. Warning— Compressed gas under high pressure. Insert the syringe sampling tube through the syringe sampling tube spacer, and into the sampling tube holder, as shown in Fig.

Shake the test oil sample thoroughly before taking a sample from the vial for titration.