ASTM D1709 ISO 7765-1-1988 JIS K7124-1 Dart Impact Tester
Application:
It is used to measure the impact mass and energy of 50% plastic film or sheet when the plastic film or sheet with a thickness of less than 1mm is impacted by a free falling dart at a given height.
Features:
2 test methods of A & B and automatic determination of testing status
Electromagnetic suspension and automatic release of the falling dart reduce the errors caused by manual operation
Pneumatic clamping, 2 starting modes of manual and pedal switch and built-in observation light are convenient to the user's operation
Professional software supports multi-unit result display, graphic display of testing process and data export and printing
Equipped with USB port and micro printer port which is convenient for data transmission and PC connection
Principle
Before starting the test, choose test method, and estimate an initial mass and Δm. Start the test. If the first specimen fails, decrease the mass of the falling dart by Δm. If the first specimen is not a failure, increase the mass of the falling dart by Δm. Continue the test according to this rule. In brief, increase or decrease by Δm according to whether the former specimen is a failure or not. After 20 specimens, calculate the total number of failed specimens N. If N equals to 10, the test is over. If N is less than 10, add specimens and continue to test until N equals to 10. If N is greater than 10, add specimen and continue the test until the number of non-failure specimens reaches 10. Then the tester calculates the test results automatically according to specific formulas.
Standards
This instrument conforms to various national and international standards:
ASTM D1709, ISO 7765-1-1988, JIS K7124-1, GB/T 9639.1-2008
Technical Specifications
Specifications | DH-BMC |
Test Method | Method A or Method B is optional |
Test Range | Method A: 50~2000 g
Method B: 300~2000 g |
Accuracy | 0.1 g (0.1J) |
Specimen Clamp | Pneumatic Clamp |
Pressure of Gas Supply | 0.6 MPa (outside of supply scope) |
Port of Gas Supply | Φ8 mm PU Tubing |
Specimen Size | > 150 mm x 150 mm |
Power Supply | AC 220V 50Hz |
Net Weight | 70 kg |
Instrument Dimension | Method A: 500 mm (L) x 450 mm (W) x 1320 mm (H) |
Method B: 500 mm (L) x 450 mm (W) x 2160 mm (H) |