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ISO 7765, ASTM D1709 Falling Dart Impact Testing Machine

ISO 7765, ASTM D1709 Falling Dart Impact Testing Machine

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

ISO 7765, ASTM D1709 Falling Dart Impact Testing Machine

Key Features

  • Standard
  • Main application

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


ModelXJB-30A
Control modeTouch screen
Output modeThermal printer
Test MethodA method: 50   ~ 2000 g
B method: 120 ~ 2000 g
Impact head sizeA method:   R19±1mm  (2 pcs)
B method: 25±1mm (1 pc)
Sample clampingPneumatic
Air   pressure requirements> 0.5 MPa
Specimen clamperOD 150mm, ID 125mm
Max. energy30J
Impact height300~1500mm
Table size450*530*2050mm
Power220V, 50HZ/110V, 60HZ, 30W
Weight45Kg
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 Falling Dart Impact Resistance of Plastic Film

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 Impact resistance by the free-falling dart method

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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