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FALLING DART IMPACT TESTER ISO 7765 is used to check the energy which causes plastic film and sheet to fail under specified conditions of impact of a free falling dart. This impact energy is expressed in terms of the weight/mass of the missile falling from a specified height which would result in 50% failure of specimens tested.
Falling dart impac tester ISO 7765 gives a quantified analysis of sample quality, uniformity, thickness and strength.
It has below technical features
Free-Falling Dart Method Impact Tester Technical Data
| Test Method | Method A or Method B(optional) |
| Test Range | Method A: 50~2000g Method B: 300~2000g |
| Dart Diameter | Method A: 38±1mm Method B: 50±1mm |
| Impact Height | 660mm/1500mm |
| Accuracy | 0.1g (0.1J) |
| Specimen Clamp | Pneumatic Clamp |
| Gas Supply | 0.6 MPa |
| Gas Port Size | Φ8 mm PU Tubing |
| Specimen Size | > 150 mm x 150 mm |
| Power Supply | AC 110~220V 50Hz |
Free-Falling Dart Method Impact Tester Standards
ASTM D1709, ISO 7765, JIS K7124-1, GB/T 9639.1-2008