Potrebujeme váš súhlas na využitie jednotlivých dát, aby sa vám okrem iného mohli ukazovať informácie týkajúce sa vašich záujmov. Súhlas udelíte kliknutím na tlačidlo „OK“.
Standard Test Methods for Void Content of Reinforced Plastics
Automaticky preložený názov:
Štandardné Skúšobné metódy pre medzerovitosti plastov vystužených
NORMA vydaná dňa 1.9.2009
Označenie normy: ASTM D2734-09
Poznámka: NEPLATNÁ
Dátum vydania normy: 1.9.2009
Kód tovaru: NS-21342
Počet strán: 3
Približná hmotnosť: 9 g (0.02 libier)
Krajina: Americká technická norma
Kategória: Technické normy 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. |
||||||||
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. |
||||||||
2. Referenced Documents | ||||||||
|
Historická
1.5.2008
Historická
1.11.2010
Historická
1.10.2011
Historická
1.5.2012
Historická
1.12.2012
Historická
1.9.2009
Poskytovanie aktuálnych informácií o legislatívnych predpisoch vyhlásených v Zbierke zákonov od roku 1945.
Aktualizácia 2x v mesiaci !
Chcete vedieť viac informácii ? Pozrite sa na túto stránku.
Posledná aktualizácia: 2024-11-03 (Počet položiek: 2 209 203)
© Copyright 2024 NORMSERVIS s.r.o.