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ASTM D 1709 : 1998

Superseded
Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

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superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

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Superseded date

11-11-2014

Published date

08-10-2001

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 of the weight (mass) of the missile falling from a specified height which would result in 50% failure of specimens tested.

1.2 Two methods of test are described:

1.2.1 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.

1.2.2 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.

1.3 Two testing techniques are described:

1.3.1 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.

1.3.2 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.

1.3.3 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.

1.4 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 Chariman of Subcommittee D20.19 through ASTM Headquarters.

Note 2—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.

1.5 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.

Committee
D 20
DocumentType
Test Method
PublisherName
American Society for Testing and Materials
Status
Superseded
SupersededBy

ASTM A 674 : 2018 Standard Practice for Polyethylene Encasement for Ductile Iron Pipe for Water or Other Liquids
ASTM D 3105 : 2017 Standard Index of Methods for Testing Elastomeric and Plastomeric Roofing and Waterproofing Materials
ASTM D 2103 : 2015 Standard Specification for Polyethylene Film and Sheeting
ASTM D 3981 : 2009 : REV A : R2016 Standard Specification for Polyethylene Films Made from Medium-Density Polyethylene for General Use and Packaging Applications
ASTM D 4272/D4272M : 2015 Standard Test Method for Total Energy Impact of Plastic Films by Dart Drop
ASTM E 1745 : 2017 Standard Specification for Plastic Water Vapor Retarders Used in Contact with Soil or Granular Fill under Concrete Slabs
ASTM E 154/E154M : 2008 : REV A : R2019 Standard Test Methods for Water Vapor Retarders Used in Contact with Earth Under Concrete Slabs, on Walls, or as Ground Cover
ASTM D 3420 : 2014 Standard Test Method for Pendulum Impact Resistance of Plastic Film
ASTM D 4397 : 2016 Standard Specification for Polyethylene Sheeting for Construction, Industrial, and Agricultural Applications
ASTM F 2097 : 2016 Standard Guide for Design and Evaluation of Primary Flexible Packaging for Medical Products
ASTM D 4635 : 2016 Standard Specification for Plastic Films Made from Low-Density Polyethylene and Linear Low-Density Polyethylene for General Use and Packaging Applications
ASTM D 5628 : 2018 Standard Test Method for Impact Resistance of Flat, Rigid Plastic Specimens by Means of a Falling Dart (Tup or Falling Mass)
ASTM D 8065/D8065M : 2016 Standard Classification System and Basis for Specification for Specifying Plastic Films

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