Signification et objectif

4.1 Le revêtement attaché au substrat s'allongera lorsque la taille du substrat est instable, or bend during the manufacturing of the item or when the item is abused in use. These test methods can be used to assess the ability of the attached coating to resist cracking when stretched. They can be used to assess the flexibility of coatings on flexible substrates. The elongation of the coating can also be tested using test method D2370. The correlation between the elongation rates determined according to the test methods D522/D522M and D2370 is unknown.

Champ d'application
1.1 These test methods include the determination of the cracking resistance (la flexibilité) of organic coatings attached to metal plates or rubber-like material substrates.

Test de flexion axiale ASTM D522-2021 pour revêtement organique

1.2 Values expressed in SI units or ink-pound units shall be considered standards, respectivement. The values specified in each system are not necessarily exactly equal; Donc, pour assurer le respect des normes, each system should be used independently and the values of the two systems should not be combined.

1.3 Cette norme n'est pas destinée à traiter tous les problèmes de sécurité, si seulement, associé à son utilisation. Il est de la responsabilité des utilisateurs de cette norme d'établir des mesures de sécurité appropriées., pratiques sanitaires et environnementales et pour déterminer l’applicabilité des restrictions réglementaires avant utilisation.

1.4 This international Standard has been developed in accordance with the internationally accepted standardization principles established in the decisions of the Committee on Technical Barriers to Trade (OTC) of the World Trade Organization on the Formulation of International standards, guidelines and recommended principles.