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ASTM D1709

Standard Test Methods for Impact Resistance of Plastic Film by the Free-Falling Dart Method

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Organization: ASTM
Publication Date: 1 May 2009
Status: inactive
Page Count: 9
ICS Code (Films and sheets): 83.140.10
scope:

These 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.

Two test methods are described:

Test Method A employs a dart with a 38.10 + 0.13-mm (1.500 + 0.005-in.) diameter hemispherical head dropped from a height of 0.66 + 0.01 m (26.0 + 0.4 in.). This test method may be used for films whose impact resistances require masses of about 50 g or less to about 2 kg to fracture them.

Test Method B employs a dart with a 50.80 + 0.13-mm (2.000 + 0.005-in.) diameter hemispherical head dropped from a height of 1.50 + 0.03 m (60.0 + 0.25, −1.70 in.). Its range of applicability is from about 0.3 kg to about 2 kg.

Two testing techniques are described:

The standard technique is the staircase method. By this technique, a uniform missile weight increment is employed during test and the missile weight is decreased or increased by the uniform increment after test of each specimen, depending upon the result (fail or not fail) observed for the specimen.

The alternative technique provides for testing specimens in successive groups of ten. One missile weight is employed for each group and missile weight is varied in uniform increments from group to group.

The staircase technique and the alternative technique give equivalent results both as to the values of impact failure weight which are obtained and as to the precisions with which they are determined.

The values stated in SI units are to be regarded as standard. The values stated in parentheses are for information only.

NOTE 1-Tests on materials that do not break, for any reason, are not considered to be valid. It has been noted that certain materials may stretch so far as to bottom out at the base of certain test instruments without actually rupturing. Subcommittee D20.19 is currently considering methods for testing these materials. Anyone interested in participating in a Task Group should contact the Chairman of Subcommittee D20.19 through ASTM International Headquarters.

This standard does not purport to address the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

NOTE 2-Film has been arbitrarily defined as sheeting having nominal thickness not greater than 0.25 μm (0.010 in.).

NOTE 3-This test method is technically equivalent to ISO 7765-1: 1988, with the exception of a larger tolerance on the drop height in Test Method B. Also, the ISO method does not allow the alternative testing technique described in Section 11 of this test method.

*A Summary of Changes section appears at the end of this standard.

Document History

May 1, 2016
Standard Test Methods for Impact Resistance of Plastic Film by the Free-Falling Dart Method
These 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...
May 1, 2016
Standard Test Methods for Impact Resistance of Plastic Film by the Free-Falling Dart Method
These 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...
April 15, 2016
Standard Test Methods for Impact Resistance of Plastic Film by the Free-Falling Dart Method
These 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...
May 15, 2015
Standard Test Methods for Impact Resistance of Plastic Film by the Free-Falling Dart Method
These 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...
January 1, 2015
Standard Test Methods for Impact Resistance of Plastic Film by the Free-Falling Dart Method
These 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...
ASTM D1709
May 1, 2009
Standard Test Methods for Impact Resistance of Plastic Film by the Free-Falling Dart Method
These 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...
November 1, 2008
Standard Test Methods for Impact Resistance of Plastic Film by the Free-Falling Dart Method
These 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...
October 1, 2004
Standard Test Methods for Impact Resistance of Plastic Film by the Free-Falling Dart Method
(Footnote *) These 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...
March 10, 2003
Standard Test Methods for Impact Resistance of Plastic Film by the Free-Falling Dart Method
These 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...
August 10, 2001
Standard Test Methods for Impact Resistance of Plastic Film by the Free-Falling Dart Method
Scope These 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...
July 10, 1998
Standard Test Methods for Impact Resistance of Plastic Film by the Free-Falling Dart Method
1. Scope* 1.1 These 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...
April 10, 1997
Standard Test Methods for Impact Resistance of Plastic Film by the Free-Falling Dart Method
A description is not available for this item.
January 1, 1991
Standard Test Methods for Impact Resistance of Plastic Film by the Free-Falling Dart Method
A description is not available for this item.
July 26, 1985
STANDARD TEST METHODS FOR IMPACT RESISTANCE OF POLYETHYLENE FILM BY THE FREE-FALLING DART METHOD
A description is not available for this item.
January 24, 1975
Standard Test Methods for Impact Resistance of Polyethylene Film by the Free-Falling Dart Method
These methods cover the determination of the energy that causes polyethylene film to fail under specified conditions of impact of a free-falling dart. This energy is expressed in terms of the weight...

References

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