Information on the most widely used ASTM standards within the materials testing industry
Model: XJB-30E, ASTM D1709, ISO 7765-1
XJB-30E Heavy duty frame falling dart impact testing machine 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.
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.
General Introduction
XJB-30E Heavy duty frame falling dart impact testing machine 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.
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

Falling dart impact tester, drop dart impact testing equipment.
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
Main parameters
| Model | XJB-30E |
| Dart weight | A method: R19±1mm (2 pcs) B method: 25±1mm (1 pc) |
| Weight | 50--2000g (5g increment) 5g (5 pcs), 15g (15 pcs), 30g (10 pcs), 45g (10 pcs), 60g (10 pcs), 90g (15 pcs) |
| Specimen clamper | OD 150mm, ID 125mm |
| Max. energy | 30J |
| Impact height | 1500mm |
| Power | 220V, 50HZ |
| Dimensions | 650mm×650mm×2600mm |
| Weight | 150Kg |
| Standard Accessories | Loadframe, Dart head, weight unit, tools, power cord, manual etc. |
Main accessories
Loadframe,
Dart head,
weight unit,
tools,
power cord,
manual etc.
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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