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F0008 - falling dart impact tester from IDM Instruments

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article image F0008- falling dart impact tester from IDM Instruments

The falling dart impact tester from IDM Instruments covers the determination of the energy that causes Polyethylene Film to fail under specified conditions, with the impact of a free-falling dart.  This energy is expressed in terms of weight (mass) of the dart falling from a specified height, which would result in 50% failure of specimens tested. 

As specified in the standard, two test methods are achievable with the falling dart impact tester:

  • Test Method A: uses a dart with a 38.0 ±1 mm diameter hemispherical head dropped from a height of 660 ± 1mm.  This method is generally used for films whose impact resistances require masses of about 50 g to 2 kg to fracture them
  • Test Method B: uses a dart with a 50.0 ± 1 mm diameter hemispherical head dropped from a height of 1500 ± 3mm. This method is generally used for films whose impact resistances require masses of about 0.3 kg to 2 kg to fracture them
The falling dart impact tester is manufactured with reference to international standards used for Flexible films, including:
  • ASTM D 1709,
  • AS/NZS 4347.6
  • ISO 7765-1
  • JIS K7124
  • GB 9639 

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