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Standard Test Method for Softening Point of Asphalt and Pitch (Mettler Cup-and-Ball Method)
Name übersetzen
NORM herausgegeben am 1.12.2018
Bezeichnung normen: ASTM D3461-18
Ausgabedatum normen: 1.12.2018
SKU: NS-911004
Zahl der Seiten: 8
Gewicht ca.: 24 g (0.05 Pfund)
Land: Amerikanische technische Norm
Kategorie: Technische Normen ASTM
Keywords:
asphalt, METTLER TOLEDO, pitch, softening point,, ICS Number Code 91.100.50 (Binders. Sealing materials), 93.080.20 (Road construction materials)
Significance and Use | ||||||||
4.1 Asphalt and pitch do not go through a solid-liquid phase change when heated, and therefore do not have true melting points. As the temperature is raised, they gradually soften or become less viscous. For this reason, the determination of the softening point must be made by an arbitrary, but closely defined, method if the test values are to be reproducible. 4.2 This test method is useful in determining the consistency as one element in establishing the uniformity of shipments or sources of supply. |
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1. Scope | ||||||||
1.1 This test method covers the determination of the softening point of asphalt and pitch in the range from 50 °C to 180 °C by the cup-and-ball apparatus, and gives results comparable to those obtained by Test Method D36. Note 1: If the softening point of asphalt by this Mettler
cup-and-ball method fails to meet specified requirements, tests may
be rerun using the Test Method D36 (ring-and-ball) softening point
apparatus as a referee method.
1.2 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.3 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee. |
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2. Referenced Documents | ||||||||
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