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Homepage>BS Standards>25 MANUFACTURING ENGINEERING>25.220 Surface treatment and coating>25.220.60 Organic coatings>20/30425653 DC BS EN 13523-7. Coil coated metals. Test methods Part 7. Resistance to cracking on bending (T-bend test)
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20/30425653 DC BS EN 13523-7. Coil coated metals. Test methods Part 7. Resistance to cracking on bending (T-bend test)

20/30425653 DC

BS EN 13523-7. Coil coated metals. Test methods Part 7. Resistance to cracking on bending (T-bend test)

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Standard number:20/30425653 DC
Pages:18
Released:2020-12-02
Status:Draft for Comment
DESCRIPTION

20/30425653 DC


This standard 20/30425653 DC BS EN 13523-7. Coil coated metals. Test methods is classified in these ICS categories:
  • 25.220.60 Organic coatings
This part of EN 13523 specifies the procedure for determining the resistance to cracking of an organic coating on a metallic substrate when bent through 135° to 180°. The degree of adhesion may also be evaluated. Both folding and mandrel methods are considered. The folding method is more often used for practical purposes but where more precise determinations are required, the mandrel method is recommended. The cylindrical bend method may also be used for a pass/fail decision by using an agreed mandrel. The choice of the appropriate test method is limited by the thickness and/or the hardness of the substrate. The feasibility of the test depends on the type and thickness of the substrate. During the procedure, the mandrel should not deform.
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