technical parameters of Cardboard puncture strength testing machine
| Article | HD-A510-2 |
| Measuring Range | (1~48)J |
| Indication Error | Ruler A: ±0.05J; Ruler B: ±0.1J; Ruler C: ±0.2J; Ruler D: ±0.5J (within the limit range 20%~80% at each measurement) |
| Pointer Friction | <0.25J |
| Pendulum Shaft Friction and Air Resistance | >120 times ( Measured by the swing frequency of arm swing) |
| Triangular Pyramid | Side Length: 60*60*60 mm; Height: 25±0.7 mm; Edge fillet Radius: 1.5±0.1 mm |
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