ASTM D938 PDF

For this objective waxes are molten for measurement. Preferably, the paraffin wax according to the present invention has a Saybolt colour according to ASTM D of at least 30 cm. Biofuel compositions and methods based on co-processing aromatic-rich and aromatic-lean components. Process for increasing the yield of lubricating base oil from a Fischer-Tropsch plant. Figure 1 schematically shows a process scheme of the process scheme of a preferred embodiment asttm the process according to the present invention. Paraffin wax produced from petroleum is essentially a pure mixture of normal and iso-alkanes without the esters, acids, etc.

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Kigazahn ASTM D — 04 Standard Test Method for Congealing Point of Petroleum Waxes, Including Petrolatum 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. The process scheme is generally referred to with reference numeral 1. By the term distillate is meant a fraction obtained with distillation which is a top cut or side qstm but not a residual bottom fraction.

In a Fischer-Tropsch process reactor a Fischer- Tropsch product stream is obtained not shown. The Saybolt colour scale is used to quantify colour intensity for mildly coloured substances in liquid state. The apparatus of clause 1, wherein the source of power is direct current. The apparatus of claim 2further comprising a power switch for permitting a source of power to be supplied to the motor. 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.

In some embodiments, the reproducibility of the method is at least about 1. In some embodiments, the source of power is alternating d93, which is accessed through power cord Need more than one copy? Please contact your local ExxonMobil representative, or contact us at www.

Preferably at least the third light wax i. CN CNA en 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. The operator sat in a chair adjusted to allow the lab bench to be at eye-level, thus eliminating any potential neck strain when observing the test.

A semi-automated method for d the congealing point of a wax-containing sample, comprising: The s pause time is not to be included aztm the 2 to 3-s rotation time. Keep the assembly in a horizontal position. Mercury, or its vapor, may be hazardous to health and corrosive to materials. Country of ref document: It has now surprisingly been found according to the present invention that the paraffin wax is a fully refined wax which may be advantageously used in several wax applications. Make a repeat determination on the wax specimen.

Typically, the Saybolt colour scale is used to quantify colour intensity for mildly coloured substances in liquid state. The apparatus of claim 3further comprising an indicator to indicate when power is supplied to the motor.

Standards Subscriptions from ANSI provides a money-saving, multi-user solution for accessing standards. Subscription pricing is determined by: Proceed to Checkout Continue Shopping. Apparatus for determining the d point of a petroleum wax sample and methods therefor. Such amended or new claims, whether they are directed to a different invention or directed to the same invention, whether different, broader, narrower, or equal in scope to the original claims, are also regarded as included within the subject matter of the inventions of the present disclosure.

Holding the thermometer in a horizontal position, firmly fit the thermometer and stopper into the flask. Figure 1 schematically shows s process scheme of the process scheme of a preferred embodiment of the process according to the present invention. These entities may refer to elements, actions, structures, steps, operations, values, and the like. In some embodiments, the source of direct current is a battery. Wax blends containing long-chain hydrocarbons and alcohols, printing ink compositions and thermal transfer ribbons containing such wax blends and use of wax blends.

While the chemical composition of waxes may be complex, normal alkanes are present. If the document is revised or amended, you will e notified by email. The method of any of clauseswherein the repeatability of the method is at least 0. Work Item s — proposed revisions of this standard. TOP Related Posts.

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