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ASTM D2549 – Standard Test Method for Separation of Representative Aromatics and Nonaromatics Fractions of High-Boiling Oils by Elution Chromatography Description: Significance and Use 5.1 The determination of compound types by mass spectrometry requires, in some instances, a preliminary separation of the petroleum sample into representative aromatics and nonaromatics fractions, as in Test Methods D2425, D2786, and D3239. This …
ASTM D2534 – Standard Test Method for Coefficient of Kinetic Friction for Wax Coatings Description: Significance and Use 5.1 The coefficient of friction is related to the slip properties of many commercial articles that have been coated with petroleum wax (for example, butter cartons and wax-impregnated or hot melt coated corrugated board). Scope 1.1 This test method …
ASTM D2532 – Standard Test Method for Viscosity and Viscosity Change After Standing at Low Temperature of Aircraft Turbine Lubricants Description: Significance and Use 5.1 Aircraft turbine lubricants, upon standing at low temperatures for prolonged periods of time, may show an increase in kinematic viscosity. This increase may cause lubrication problems in aircraft engines. Thus, this …
ASTM D2523 – Standard Practice for Testing Load-Strain Properties of Roofing Membranes Description: Significance and Use 4.1 This practice is designed to aid those interested in the engineering properties of roofing membranes. 4.2 The data obtained will not permit prediction of the service life of a membrane under field conditions. The data will provide a basis for …
ASTM D2520 – Standard Test Methods for Complex Permittivity (Dielectric Constant) of Solid Electrical Insulating Materials at Microwave Frequencies and Temperatures to 1650 °C Description: Significance and Use 4.1 Design calculations for such components as transmission lines, antennas, radomes, resonators, phase shifters, etc., require knowledge of values of complex permittivity at operating frequencies. The related microwave measurements …
ASTM D2510 – Standard Test Method for Adhesion of Solid Film Lubricants Description: Significance and Use 5.1 Effective solid film lubricant coatings must adhere to surfaces to provide adequate lubrication in applications with restricted access where fluid lubricants cannot easily be replenished. Loss of coating adhesion results in metal to metal contact causing significant wear of …
ASTM D2509 – Standard Test Method for Measurement of Load-Carrying Capacity of Lubricating Grease (Timken Method) Description: Significance and Use 5.1 The test method is used widely for specification purposes and is used to differentiate between greases having low, medium, or high levels of extreme pressure characteristics. The results may not correlate with results from service. …
ASTM D2505 – Standard Test Method for Ethylene, Other Hydrocarbons, and Carbon Dioxide in High-Purity Ethylene by Gas Chromatography (Withdrawn 2024) Description: Significance and Use 4.1 High-purity ethylene is required as a feedstock for some manufacturing processes, and the presence of trace amounts of carbon dioxide and some hydrocarbons can have deleterious effects. This method is …
ASTM D2503 – Standard Test Method for Relative Molecular Mass (Molecular Weight) of Hydrocarbons by Thermoelectric Measurement of Vapor Pressure (Withdrawn 2022) Description: Significance and Use 3.1 Relative molecular mass (molecular weight) is a fundamental physical constant that can be used in conjunction with other physical properties to characterize pure hydrocarbons and their mixtures. 3.2 A knowledge …
