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ASTM D4441-20 - Standard Specification for Aqueous Dispersions of Polytetrafluoroethylene
July 1, 2020 - ASTM International

This specification establishes the properties and test methods for aqueous dispersions of polytetrafluoroethylene (PTFE) resins, and is used to determine if a shipment, lot, or container of PTFE dispersions is suitable for its intended use. These resins are homopolymers...

ASTM D4662-20 - Standard Test Methods for Polyurethane Raw Materials: Determination of Acid and Alkalinity Numbers of Polyols
July 1, 2020 - ASTM International

1.1 These test methods measure the acidic and basic constituents in polyols and other materials of high acidity or alkalinity that are soluble in mixtures of toluene and ethyl alcohol. These test methods do not apply to polyethers. (See Note 1.) 1.2 This standard...

ASTM D5186-20 - Standard Test Method for Determination of the Aromatic Content and Polynuclear Aromatic Content of Diesel Fuels By Supercritical Fluid Chromatography
July 1, 2020 - ASTM International

1.1 This test method covers the determination of the total amounts of monoaromatic and polynuclear aromatic hydrocarbon compounds in motor diesel fuels and blend stocks by supercritical fluid chromatography (SFC). The range of aromatics concentration to...

ASTM D5303-20 - Standard Test Method for Trace Carbonyl Sulfide in Propylene by Gas Chromatography
July 1, 2020 - ASTM International

1.1 This test method covers the determination of traces of carbonyl sulfide (COS) in propylene. It is applicable to COS concentrations from 0.5 mg/kg to 4.0 mg/kg (parts per million by mass). See Note 1. Note 1: The lower limit of this test method is believed to be below...

ASTM D5465-16(2020) - Standard Practices for Determining Microbial Colony Counts from Waters Analyzed by Plating Methods
July 1, 2020 - ASTM International

4.1 Numerous ASTM test methods and practices (for example: Test Methods D5259 and D5392, and Practices D6974 and E2563) report colony counts as their measured parameter. 4.2 These practices provide a uniform set of counting, calculating, and reporting...

ASTM D6297-20 - Standard Specification for Asphaltic Plug Joints for Bridges
July 1, 2020 - ASTM International

1.1 This specification covers the material, testing, and application requirements for a field-molded asphaltic plug joint (APJ) used in expansion joint sealing on asphalt concrete overlay and portland cement concrete decks. The scope of this specification is limited to...

ASTM D6550-20 - Standard Test Method for Determination of Olefin Content of Gasolines by Supercritical-Fluid Chromatography
July 1, 2020 - ASTM International

1.1 This test method covers the determination of the total amount of olefins in blended motor gasolines and gasoline blending stocks by supercritical-fluid chromatography (SFC). Results are expressed in terms of mass percent olefins. The method working range is...

ASTM D7038-20 - Standard Test Method for Evaluation of Moisture Corrosion Resistance of Automotive Gear Lubricants
July 1, 2020 - ASTM International

5.1 This test simulates a type of severe field service in which corrosion-promoting moisture in the form of condensed water vapor accumulates in the axle assembly. This may happen as a result of volume expansion and contraction of the axle lubricant and the...

ASTM D7216-20 - Standard Test Method for Determining Automotive Engine Oil Compatibility with Typical Seal Elastomers
July 1, 2020 - ASTM International

1.1 This test method covers quantitative procedures for the evaluation of the compatibility of automotive engine oils with several reference elastomers typical of those used in the sealing materials in contact with these oils. Compatibility is evaluated by determining...

ASTM D7238-20 - Standard Test Method for Effect of Exposure of Unreinforced Polyolefin Geomembrane Using Fluorescent UV Condensation Apparatus
July 1, 2020 - ASTM International

5.1 The use of this apparatus is intended to induce property changes associated with the end-use conditions, including the effects of the UV portion of sunlight, moisture, and heat. Exposures are not intended to simulate the deterioration caused by localized...

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