Longitudinal strength of top stop
Reciprocating test
Closed-end test
Longitudinal strength of bottom stop at closed end zip
Lateral strength of bottom stop at closed end zip
Security of attachment of puller
Opening of slider
Lateral strength
Lateral strength as folded
Tensile strength of tooth
Slide of tooth
Slider locking test
Lateral strength of open-end parts
Security of attachment of box at open-end zip
Resistance to twist of puller
ASTM D2061-1987 (ITS, HK)
For example pullers and puller attachments have to be strong,
much stronger than the requirements of the international standards.