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Description of ASTM-D893 2012ASTM D893 - 12Standard Test Method for Insolubles in Used Lubricating OilsActive Standard ASTM D893 | Developed by Subcommittee: D02.06 Book of Standards Volume: 05.01 ASTM D893Significance and Use Pentane insolubles can include oil-insoluble materials and some oil-insoluble resinous matter originating from oil or additive degradation, or both. Toluene insoluble materials can come from ( 1 ) external contamination, ( 2 ) fuel carbon and highly carbonized materials from degradation of fuel, oil, and additives, or ( 3 ) engine wear and corrosion materials. A significant change in pentane insolubles, toluene insolubles (with or without coagulant), and insoluble resins indicates a change in oil which could lead to lubrication system problems. Insolubles measured can also assist in evaluating the performance characteristics of a used oil or in determining the cause of equipment failure. 1. Scope 1.1 This test method covers the determination of pentane and toluene insolubles in used lubricating oils. 1.2 Procedure A covers the determination of insolubles without the use of coagulant in the pentane. It provides an indication of the materials that can readily be separated from the oil-solvent mixtures by centrifuging. 1.3 Procedure B covers the determination of insolubles in oils containing detergents and employs a coagulant for both the pentane and toluene insolubles. In addition to the materials separated by using Procedure A, this coagulation procedure separates some finely divided materials that may be suspended in the oil. Note 1Results obtained by Procedures A and B should not be compared since they usually give different values. The same procedure should be employed when comparing values obtained periodically on an oil in use or when comparing results determined by two or more laboratories. 1.4 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. 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. For specific warning statements, see Section 7 and 9.1.1.
ASTM Standards D1193 Specification for Reagent Water D4057 Practice for Manual Sampling of Petroleum and Petroleum Products D4177 Practice for Automatic Sampling of Petroleum and Petroleum Products Keywords insoluble resins; insolubles; lubricating oil; pentane insolubles; toluene insolubles; used; Insoluble matter content--petroleum products; Lubricating oils; Pentane-insolubles content; Resin content; Toluene--petroleum products; Toluene insolubles (TI); Used lubricating oils ICS Code ICS Number Code 75.100 (Lubricants, industrial oils and related products) DOI: 10.1520/D0893-12 ASTM International is a member of CrossRef. ASTM D893The following editions for this book are also available...
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About ASTMASTM International, formerly known as the American Society for Testing and Materials (ASTM), is a globally recognized leader in the development and delivery of international voluntary consensus standards. Today, some 12,000 ASTM standards are used around the world to improve product quality, enhance safety, facilitate market access and trade, and build consumer confidence. ASTM’s leadership in international standards development is driven by the contributions of its members: more than 30,000 of the world’s top technical experts and business professionals representing 150 countries. Working in an open and transparent process and using ASTM’s advanced electronic infrastructure, ASTM members deliver the test methods, specifications, guides, and practices that support industries and governments worldwide. |
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