Materials Characterization Services
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ASTM D4951 – Standard Test Method for Determination of Additive Elements in Lubricating Oils by Inductively Coupled Plasma Atomic Emission Spectrometry Description: Significance and Use 4.1 This test method usually requires several minutes per sample. This test method covers eight elements and thus provides more elemental composition data than Test Method D4628 or Test Methods D4927. In addition, this …
ASTM D4950 – Standard Classification and Specification for Automotive Service Greases Description: Scope 1.1 This specification covers lubricating greases suitable for the periodic relubrication of chassis systems and wheel bearings of passenger cars, trucks, and other vehicles. 1.2 This specification defines the requirements used to describe the properties and performance characteristics of chassis greases and wheel bearing …
ASTM D495 – Standard Test Method for High-Voltage, Low-Current, Dry Arc Resistance of Solid Electrical Insulation Description: Significance and Use 4.1 The high-voltage, low-current type of arc resistance test is intended to simulate only approximately such serviceconditions as exist in alternating current circuits operating at high voltage, but at currents limited to units and tens of …
ASTM D4951 – Standard Test Method for Determination of Additive Elements in Lubricating Oils by Inductively Coupled Plasma Atomic Emission Spectrometry Description: Significance and Use 4.1 This test method usually requires several minutes per sample. This test method covers eight elements and thus provides more elemental composition data than Test Method D4628 or Test Methods D4927. In addition, this …
ASTM D4950 – Standard Classification and Specification for Automotive Service Greases Description: Scope 1.1 This specification covers lubricating greases suitable for the periodic relubrication of chassis systems and wheel bearings of passenger cars, trucks, and other vehicles. 1.2 This specification defines the requirements used to describe the properties and performance characteristics of chassis greases and wheel bearing …
ASTM D495 – Standard Test Method for High-Voltage, Low-Current, Dry Arc Resistance of Solid Electrical Insulation Description: Significance and Use 4.1 The high-voltage, low-current type of arc resistance test is intended to simulate only approximately such serviceconditions as exist in alternating current circuits operating at high voltage, but at currents limited to units and tens of …
ASTM D4948 – Standard Test Method for Determination of the Upper Layer Separated from a Viscous Liquid Description: Significance and Use 4.1 The United Nations Committee of Experts on the Transport of Dangerous Goods in their recommended regulations place materials having a flash point below 23 °C (73.5 °F) in Packing Group II. However, if viscous substances such …
ASTM D4946 – Standard Test Method for Blocking Resistance of Architectural Paints Description: Significance and Use 5.1 Dry paint often comes in contact with itself especially in window and door areas and, depending on its hardness, the pressure, temperature, humidity, and duration of time the surfaces are in contact, sometimes sticks to itself (blocks). This stringent …
ASTM D4943 – Standard Test Method for Shrinkage Factors of Cohesive Soils by the Water Submersion Method Description: Significance and Use 5.1 The shrinkage limit can be used to evaluate the shrinkage potential, crack development potential, and swell potential of earthwork involving cohesive soils. 5.2 The shrinkage limit, along with the liquid limit and plastic limit of …
ASTM D4940 – Standard Test Method for Conductimetric Analysis of Water Soluble Ionic Contamination of Blast Cleaning Abrasives Description: Significance and Use 4.1 Abrasive media may contain ionic contamination naturally (for example, mineral abrasives), from manufacturing (quenching with contaminated water), transportation, storage or use (in the case of abrasive that is reused). Ionic contamination on the …
