ASTM D3354-04

Standard Test Method for Blocking Load of Plastic Film by the Parallel Plate Method

SCOPE
1.1 This test method yields quantitative information regarding the degree of blocking (unwanted adhesion) existing between layers of plastic film. It is not intended to measure susceptibility to blocking.
1.2 By this procedure, the film-to-film adhesion, expressed as a blocking load in grams, will cause two layers of film with an area of contact of 100 cm2 to separate. The test method is limited to a maximum load of 200 g.
1.3 The values stated in SI units are to be regarded as standard. The values given in brackets are for information only.
1.4 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 1
This test method is similar to ISO 11502 Method B, but is not technically equivalent.

General Information

• Status: Historical
• Publication Date: 31-Aug-2004
• ICS: 83.140.10 - Films and sheets
• Technical Committee: D20 - Plastics
• Drafting Committee: D20.19 - Film, Sheeting, and Molded Products

Relations

• Replaces: ASTM D3354-96 - Standard Test Method for Blocking Load of Plastic Film by the Parallel Plate Method
• Effective Date: 01-Sep-2004
• Referred By: ASTM D8065/D8065M-16 - Standard Classification System and Basis for Specification for Specifying Plastic Films
• Effective Date: 01-Sep-2004
• Referred By: ASTM D2673-14(2022) - Standard Specification for Oriented Polypropylene Film
• Effective Date: 01-Sep-2004

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation:D3354–04
Standard Test Method for
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Blocking Load of Plastic Film by the Parallel Plate Method
This standard is issued under the fixed designation D 3354; 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 ends of the films that extend past the blocks are secured to the
respective upper and lower block. The force required to
1.1 This test method yields quantitative information regard-
overcome the adhesion (blocking force) between the two
ing the degree of blocking (unwanted adhesion) existing
pieces of film or until they reach 1.9 cm of separation is
between layers of plastic film. It is not intended to measure
measured in grams using a constant-rate-of-load or a constant-
susceptibility to blocking.
rate-of separation device.
1.2 By this procedure, the film-to-film adhesion, expressed
as a blocking load in grams, will cause two layers of film with
5. Significance and Use
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an area of contact of 100 cm to separate. The test method is
5.1 Blocking develops in film processing and storage when
limited to a maximum load of 200 g.
layers of smooth film are in intimate contact with nearly
1.3 The values stated in SI units are to be regarded as
complete exclusion of air. Temperature, or pressure, or both,
standard.Thevaluesgiveninbracketsareforinformationonly.
can induce or change the degree of adhesion of the surfaces.
1.4 This standard does not purport to address all of the
5.2 The procedure of this test method closely simulates the
safety concerns, if any, associated with its use. It is the
operation of separating film in some end-use applications.
responsibility of the user of this standard to establish appro-
priate safety and health practices and determine the applica-
6. Apparatus
bility of regulatory limitations prior to use.
6.1 The parallel block faces shall be square and 100 6 0.1
NOTE 1—This test method is similar to ISO 11502 Method B, but is not
mm (on each edge with a flat and slightly knurled or sand-
technically equivalent.
blasted finish of root mean square 125). A means must be
provided to prevent the blocks from sliding when they are in
2. Referenced Documents
contact during loading.
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2.1 ASTM Standards:
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6.2 Constant-Rate-of-Load Device :
D 618 Practice for Conditioning Plastics for Testing 2 2
6.2.1 An instrument with 100-cm [4-in. ] blocks which
D 883 Terminology Relating to Plastics
electronicallytimesaloadingrateof90gramsperminute(61)
E 691 Practice for Conducting an Interlaboratory Study to
(see Fig. 1). The force required to separate the blocks is
Determine the Precision of a Test Method
displayed electronically.
2.2 ISO Standard:
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NOTE 2—Onsomeconstant-rate-ofloaddevices,theweightisaddedby
ISO 11502 Determination of Blocking Resistance
moving a weight axially along the beam with a precision-drive system.
This may be accomplished using a stepper motor with a digital stepping
3. Terminology
drive with 60 cycles as its reference control. The load rate must be 90
3.1 Definitions: For definitions of terms used in this test
grams per minute.
method, refer to Terminology D 883.
6.3 Constant-Rate-of-Separation Testing Device—A testing
4. Summary of Test Method machine of the constant-rate-of crosshead-movement type and
comprising essentially the following:
4.1 Twopiecesoffilm,whichareincontactwitheachother,
6.3.1 Fixed Member—A fixed or essentially stationary
are placed between two 100-mm [4-in.] square blocks. The
member carrying one aluminum block 100 by 100 61mm
with appropriate rigid adapter for mounting in a universal
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This test method is under the jurisdiction ofASTM Committee D20 on Plastics
testing machine.
and is the direct responsibility of Subcommittee D20.19 on Film and Sheeting.
Current edition approved Sept. 1, 2004. Published May 2006. Originally
approved in 1974. Last previous edition approved in 1996 as D 3354 - 96.
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For referenced ASTM standards, visit the ASTM website, www.astm.org, or
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the ASTM website. you are aware of alternative suppliers, please provide this information to ASTM
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