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Standard Test Methods for Void Content of Reinforced Plastics
Automatische name übersetzung:
Standard-Prüfverfahren für Void Inhalt Verstärkte Kunststoffe
NORM herausgegeben am 1.9.2009
Bezeichnung normen: ASTM D2734-09
Anmerkung: UNGÜLTIG
Ausgabedatum normen: 1.9.2009
SKU: NS-21342
Zahl der Seiten: 3
Gewicht ca.: 9 g (0.02 Pfund)
Land: Amerikanische technische Norm
Kategorie: Technische Normen ASTM
Keywords:
composites, ignition loss, plastics, reinforced plastics, void content, weight fractions, Reinforced thermosetting plastics (RTP), Void content, ICS Number Code 83.120 (Reinforced plastics)
Significance and Use | ||||||||
The void content of a composite may significantly affect some of its mechanical properties. Higher void contents usually mean lower fatigue resistance, greater susceptibility to water penetration and weathering, and increased variation or scatter in strength properties. The knowledge of void content is desirable for estimation of quality of composites. |
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1. Scope | ||||||||
1.1 These test methods cover the void content of reinforced plastics or “composites.” The test methods are applicable to composites for which the effects of ignition on the materials are known. Most plastics, glass, and reinforcements fall into this class. These test methods are not applicable to composites for which the effects of ignition on the plastics, the reinforcement, and any fillers are unknown. This class may include silicone resins, which do not burn off completely, reinforcements consisting of metals, organic materials, or inorganic materials which may gain or lose weight, and fillers consisting of oxides, carbonates, etc., which may gain or lose weight. Note that separate weight loss tests of individual materials will usually, but not necessarily, give the same result as when all the materials are combined. Note 1—There is no known ISO equivalent to these test methods. 1.2 The values stated in SI units are to be regarded as standard. 1.3 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. |
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2. Referenced Documents | ||||||||
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Historisch
1.5.2008
Historisch
1.11.2010
Historisch
1.10.2011
Historisch
1.5.2012
Historisch
1.12.2012
Historisch
1.9.2009
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