Information on the most widely used ASTM standards within the materials testing industry
Model: XJB-30A, ISO 7765-1, ASTM D1709, ASTM D5628, ISO 6603-1
XJB-30A Falling dart impact tester mainly used to test plastic, film, or sheet thickness below 1mm, impact by falling dart, check the energy when 50% of test specimen broken. Conform with standard: ISO 7765-1, ASTM D1709, GBT 9639. ASTM D5628, ISO 6603-1. Under the given conditions, with A or B method to determine the sample damaged quantity 50% fall quality.
General Introduction
XJB-30A Falling dart impact tester mainly used to test plastic, film, or sheet thickness below 1mm, impact by falling dart, check the energy when 50% of test specimen broken. Conform with standard: ISO 7765-1, ASTM D1709, GBT 9639. ASTM D5628, ISO 6603-1. Under the given conditions, with A or B method to determine the sample damaged quantity 50% fall quality.
Scope:
Falling dart impact is a traditional method for evaluating the impact strength or toughness of a plastic film. This test uses a single dart configuration and a single drop height, while varying the weight of the dart. Test results can be used either as a quality control evaluation or for end use comparisons.
Specimen size:
Film samples that can be cut to 230 mm x 230 mm (9" x 9") specimens.
A minimum of 30 specimens are required for the test.
A: 38mm dart head weight weight:
1. 38mm dart head with a total weight of 40 grams 1
2. 38mm dart head long rod with a total weight of 70 grams (10g of locking ring) 1
3. 2 weights of 5 grams, 8 weights of 15, 30, 80 and 120 grams
B: 50mm dart head weight weight:
1. 50mm dart head aluminum rod locking ring with a total weight of 120g (locking ring weight 10g) 1pc
2. Two counterweight weights of 15 grams, 8 weights of 45, 90 and 180 grams

Key Features
ISO 7765-1: Plastics film and sheeting -- Determination of impact resistance by the free-falling dart method -- Part 1: Staircase methods
ASTM D1709: Standard Test Methods for Impact Resistance of Plastic Film by the Free-Falling Dart Method.
JIS K 7124-1 - Plastics film and sheeting.
ASTM D5628 Standard Test Method for Impact Resistance of Flat, Rigid Plastic Specimens by Means of a Falling Dart (Tup or Falling Mass)
ISO 6603-1 Plastics - Determination of puncture impact behaviour of rigid plastics - Part 1: Non-instrumented impact testing.
| Films and Sheets: | Suitable for impact resistance testing of plastic films, sheets, and composite films with a thickness of less than 1mm, such as PE cling film, stretch film, PET sheets, various types of food packaging bags, and heavy-duty packaging bags. |
| Aluminum Foil and Aluminum-Plastic Composite Film: | Suitable for impact resistance testing of aluminum foil and aluminum-plastic composite films. |
| Paper and Cardboard Testing: | Suitable for impact resistance testing of paper and cardboard. |
Main parameters
| Model | XJB-30A |
| Control mode | Touch screen |
| Output mode | Thermal printer |
| Test Method | A method: 50 ~ 2000 g B method: 120 ~ 2000 g |
| Impact head size | A method: R19±1mm (2 pcs) B method: 25±1mm (1 pc) |
| Sample clamping | Pneumatic |
| Air pressure requirements | > 0.5 MPa |
| Specimen clamper | OD 150mm, ID 125mm |
| Max. energy | 30J |
| Impact height | 300~1500mm |
| Table size | 450*530*2050mm |
| Power | 220V, 50HZ/110V, 60HZ, 30W |
| Weight | 45Kg |
| Standard Accessories | Loadframe, Dart head, weight unit, tools, power cord, manual etc. A Dart Head: 2 pcs B Dart Head: 1 pc Method A weights: 1 set Method B weights: 1 set |
Main Accessories
Loadframe, Dart head,
weight unit,
tools,
power cord,
manual etc.
A Dart Head: 2 pcs
B Dart Head: 1 pc
Method A weights: 1 set
Method B weights: 1 set
Standard
ISO 6603-1 specifies falling-dart methods to measure the puncture‑impact performance of rigid plastics using only the 50% impact‑failure energy (E₅₀) threshold, without recording force–time or force–deflection curves.
ASTMD5628 specifies a falling‑dart/tup method to measure the threshold impact‑failure energy for flat rigid plastics. It uses the Bruceton Staircase (Up‑and‑Down) Method to determine the energy causing 50% of specimens to fail (mean‑failure energy, MFE).
ASTM D1709: Standard Test Methods for Impact Resistance of Plastic Film by the Free-Falling Dart Method
ASTM D1709 test methods cover the determination of the energy that causes plastic film to fail under specified conditions of impact of a free-falling dart. This 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.
ISO 7765-1:1988 Plastics film and sheeting — Determination of impact resistance by the free-falling dart method
Part 1: Staircase methods
ISO 7765-1 and ASTM D1709 specifies methods for the determination of the energy, that causes plastics films and sheet less than 1 mm in thickness to fail under specified conditions of impact of a free falling dart from a specified height, that would result in failure of 50 % of the specimens tested. Two methods are described. Method A employs a dart with 38 mm diameter hemispherical head, dropped from a height of 0,66 m, and method B employs a dart with a 50 mm diameter hemispherical head dropped from a height of 1,50 m. The measurement technique is the staircase method.
Drop Dart Impact Resistance of Plastic Film ASTM D1709, ISO 7765
ASTMD5420 measures the relative ranking of materials based on the energy required to crack or break a plastic sheet when struck by a falling weight (the "Gardner Impact" method).
ASTMD3029 is designed to determine the relative ranking of rigid plastic materials based on the energy required to crack or break them under specified impact conditions.
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