It is important to understand the impact resistance of packaging materials for since it will be subjected to impacts during transportation and loading. It is widely used in R&D departments, laboratories, packaging industries, inspection agencies, and film manufacturing units etc. to determine the maximum energy that their products can withstand without failure.
QT-FDIT determines the energy required for plastic films and foils to fail under the impact of a free falling dart under specific conditions. This energy is expressed in terms of the weight of the dart falling from a specified height which would result in 50% failure of specimens tested.
QT-FDIT is used to test impact resistance of various paper and plastic films, membranes, composite films, metallic foil, etc in manufacturing units, laboratory, and research institute for quality control of packaging and packaging materials and development of new products.
Place the sample on the fixture, press the sample button and close the fixture in such a way that the sample is held properly. Then select the method of testing and insert the test parameters, place the dart and press the start button, observe the damage. If the dart hasn’t damaged the test sample, increase the weight and repeat the procedure until the sample is damaged or broken after that, press the broken button and press the calculate button, then the tester calculates the test results automatically.
Test method A: specifies a dart with a 38 mm (1.5") diameter dropped from 0.66 m (26")
This test method may be used for films whose impact resistances require masses of about 50 g or less to about 2 Kg. The standard technique is the staircase method. By this technique, a uniform missile weight increment is employed during the test and the missile weight is increased or decreased by uniform increment after test of each specimen, depending upon the result (fail or not fail) observed for the specimen.
Test method B: specifies a dart with a 51 mm (2") diameter dropped from 1.5 m (60")
Its applicable range is from about 0.3 Kg to about 2 Kg. This method employs testing specimens in successive group of ten. One missile weight is employed for each group and missile weight is varied in uniform increments from group to group.
Both techniques give equivalent results both as to the values of impact failure weight which are obtained and as to the precisions with which they are determined.
Technical Specifications |
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Test Methods |
Mode A |
Mode B |
Test Range / Dart Weight |
50 ~ 2000 g, |
300 ~ 2000 g |
Dart diameter |
38 ± 1 mm |
50 ± 1 mm |
Specimen Size |
≥ 150 mm x 150 mm |
|
Impact height |
660 mm & 1500 mm |
|
Test accuracy |
1g |
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Instrument size |
650 mm x 650 mm x 2200 mm |
650 mm x 650 mm x 2600 mm |
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