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 Method for Durability Assessment of Adhesive Joints Stressed in Peel
Automaticky preložený názov:
Štandardná skúšobná metóda pre odolnosť posudzovanie lepených spojov je zdôraznené v Peel
NORMA vydaná dňa 1.10.2012
Označenie normy: ASTM D2918-99(2012)
Poznámka: NEPLATNÁ
Dátum vydania normy: 1.10.2012
Kód tovaru: NS-21956
Počet strán: 4
Približná hmotnosť: 12 g (0.03 libier)
Krajina: Americká technická norma
Kategória: Technické normy ASTM
Keywords:
adhesive, durability, exposure, joint, moisture, stressed, T-peel, ICS Number Code 83.180 (Adhesives)
Significance and Use | ||||||||||||
4.1 The combination of stress and moisture decreases the durability of most adhesive joints. Stresses in the presence of water or water vapor may cause some adhesive joints to fail at some small fraction of the stress required to break the dry joint. The time to failure for a given adhesive joint generally decreases with increasing stress, temperature, and relative humidity. 4.2 This test method may be used as an accelerated screening test for assessing the durability of adhesive joints. It may be used to measure durability of adhesive joints exposed outdoors or to environmental conditions experienced by adhesive joints in service. It may also be used to determine the effects of various surface preparations or substrates on durabilities of adhesive joints. 4.3 The durability performance of various adhesives may be compared by using this test method under uniform sets of conditions. To assess the overall durability of a given adhesive, T-peel joints should be tested under a range of stress, relative humidity, and temperature. For a specific end use it may be possible to obtain the needed durability data using only one set of test conditions. |
||||||||||||
1. Scope | ||||||||||||
1.1 This test method provides data for assessing the durabilities of adhesive joints by means of T-peel type specimens stressed in contact with air, air in equilibrium with certain solutions, water, aqueous solutions, or other environments at various temperatures. 1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only. 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
1.10.2012
Historická
1.5.2012
Historická
1.7.2013
Historická
1.10.2013
Historická
1.10.2008
Historická
1.3.2014
Posledná aktualizácia: 2024-11-29 (Počet položiek: 2 209 895)
© Copyright 2024 NORMSERVIS s.r.o.