Snap Holding Strength Testing
· ASTM D7142
ASTM D7142, "Standard Test Method for Holding Strength of Prong-Ring Attached Snap Fasteners," ASTM International
Scope: To cover the determination of the holding strength of a prong ring to the socket or stud of a snap fastener using a tensile testing machine.
- Mount specimen on machine
- Initiate testing until prong ring disengages from fastener or the fabric tears
- Record the force to disengage