ASTM D4635-08

This document is not anASTM standard and is intended only to provide the user of anASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation:D4635–01 Designation: D 4635 – 08
Standard Specification for
Polyethylene Films Made from Low-Density Polyethylene for
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General Use and Packaging Applications
This standard is issued under the fixed designation D 4635; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (e) indicates an editorial change since the last revision or reapproval.
1. Scope*
1.1 This specification covers unpigmented, unsupported, low-density polyethylene films (hereafter referred to as film or films)
from Class 1 polyethylenes per Specification D 4976.
NOTE 1—The density of a film will not necessarily be equal to the density of a molded plaque from the same resin.
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NOTE 2—Blends of ethylene/vinylacetate (EVA) with low-density polyethylene may have densities up to 0.929 g/cm .
1.2 This specification is applicable to homopolymer polyethylene, but is not restricted to it. It is applicable to films made from
polyethylene copolymers, and also applicable to films made from blends of homopolymers and copolymers, including
ethylene/vinylacetate copolymers.
1.3 The thickness of the films covered by this specification is 100 µm or less (0.004 in. or less), inclusive. The maximum width
of the sheet or layflat is 3.00 m (120 in.).
1.4 This specification does not cover oriented heat-shrinkable films.
1.5 This specification allows for the use of recycled polyethylene film or resin as feedstock, in whole or in part, as long as all
of the requirements of this specification are met and as long as any specific requirements as governed by the producer and end user
are also met. (See Note 3.)
NOTE3—Guide D5033 3—Guide D 7209 describes terminology and definitions related to recycled plastics.
1.6 This specification defines the levels of the various physical properties from which specifications for specific films may be
described. The levels of physical properties required by a film for a given application are selected from Section 6. However,
Sections 2-5 relating to tolerances shall apply without change to all film falling within the scope indicated by the title and 1.1-1.4.
1.7 This specification covers dimensional tolerances, classifications, intrinsic quality requirements, and test methods. The
dimensional tolerances include thickness, width, and length or yield. Classification defines types, classes, surfaces, and finishes.
The intrinsic quality requirements include density, workmanship, tensile strength, heat sealability, and odor, as well as the
classification properties for impact strength, coefficient of friction, optical properties, and surface treatment. A sampling method
is included.
1.8 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
1.9 The following precautionary caveat pertains only to the test methods portion, Section 10, of this specification: This standard
does not purport to address all of 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 4—There is no similar or equivalent ISO specification.
2. Referenced Documents
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2.1 ASTM Standards:
D 618 Practice for Conditioning Plastics for Testing
D 882 Test MethodsMethod for Tensile Properties of Thin Plastic Sheeting
D 883 Terminology Relating to Plastics
D 1003 Test Method for Haze and Luminous Transmittance of Transparent Plastics
D 1505 Test Method for Density of Plastics by the Density-Gradient Technique
D 1709 Test Methods for Impact Resistance of Plastic Film by the Free-Falling Dart Method
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This specification is under the jurisdiction of ASTM Committee D20 on Plastics and is the direct responsibility of Subcommittee D20.19 on Film and Sheeting .
Current edition refers to resin density, not film density; it also has a revised section for inspection and certification.
Current edition approved June 10, 2001. Published August 2001. Originally published as D4635–86. Last previous edition D4635–95.
Current edition approved Jan. 15, 2008. Published January 2008. Originally approved in 1986. Last previous edition approved in 2001 as D4635 - 01.
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For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’s Docume
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