Information on the most widely used ASTM standards within the materials testing industry
Model: XJB-30A, ISO 7765-1, ASTM D1709
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, GB 9639. 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. 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.
| 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
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
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