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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Replace the sampling tube stopper. Standard test method for oxidation characteristics of inhibited mineral oils.

Using this mandrel, the iron wire is wound on a thread of Alternatively, temperature—measuring devices of equal or better accuracy may be used. It is important to strictly adhere to the procedure and schedule for sampling for acid number. Use Test Method D when the acid number exceeds 0. Determination of the oxidation stability of inhibited mineral oils the TOST test. An exception is where the oil is known to have a life shorter than h, the sampling is at the discretion of the operator.

Current edition approved August 10, Open tube ends to be ground and? If you feel that your comments have not received a fair hearing you should make your views known to the ASTM Committee on Standards, at the address shown below.

Rinse thoroughly with tap water until all acid is removed. Marking the upper oil level of the? NOTE 10—Beyond 10 h, oil removal causes the metal catalyst coil to be exposed to the atmosphere. Your comments will receive careful consideration at a meeting of the responsible technical committee1, which you may attend.

Test Method D is now available for sludge measurement. Slide the catalyst coil over the inlet of the oxygen delivery tube. Rinse thoroughly with tap water until all cleaning solution is removed. A superscript epsilon e indicates an editorial change since the last revision or reapproval.

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D — 02 Methods D and D use a color change to indicate the titration end point. Check the temperature in this way in various parts of a multiple-cell bath to verify uniformity of temperature control. At that time, the state of severe oxidation of the oil, as indicated by the high acid number, is generally con? Gas reduces oxygen available for asym. Adjust the rate of? In subsequent operations handle the catalyst wires with clean gloves cotton, rubber, or plastic to prevent contact with the skin.

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.

Atsm test is considered to start at this point. Preparation of Apparatus 8. Store glassware in a dry dust-free condition until ready to use. NOTE 7—Test results by this method are greatly affected by differences in sampling procedure. Position the bottom end of the sampling tube inside the catalyst coil. Before using, the interior of dd943 new tubing should be rinsed with n-Heptane and blown dry with air. The effect of such exposure on oil life has not been determined, nor has the method precision been determined by cooperative testing.

Your comments will receive careful consideration at a meeting of the responsible technical committee, which you may attend.

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Place the condenser over the oxygen delivery tube and test tube. It should be recognized, however, that correlation between results of this method and the oxidation stability of a lubricant in? If a viewing window is included in the design, this viewing window shall be? 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.

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

The 35 litre oil bath can accept up to six sets of glassware. Once the required bath temperature is found, maintain at that temperature If more than two results are obtained by one or both of the laboratories, reproducibility can be calculated as indicated in 4. Add the water using the sampling tube and the mL capacity syringe.

The oxidation test tube has a calibration line at mL. As the test proceeds and water evaporates to cause the oil level to fall, sufficient makeup water is added, particularly just before oil samples are taken, to return the oil level to the level marked by the indicator strip.

Alternatively, thin stainless steel wire may be used. Redistilled n-Heptane conforming to aatm. The precision statement for this method was determined on steam turbine oils. This standard is subject to atsm at any time by the responsible technical committee and must be d9443 every?

This standard has been approved for use by agencies of the Department of Defense. Place the oxygen delivery tube with the coil into the test tube. D — 02 Dimensions are in millimetres inches. The use of a two-stage pressure regulator on tank oxygen is recommended.