ASTM D3354 - 11

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

    Active Standard ASTM D3354 | Developed by Subcommittee: D20.19

    Book of Standards Volume: 08.02


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    ASTM D3354

    Significance and Use

    Blocking develops in film processing and storage when layers of smooth film are in intimate contact with nearly complete exclusion of air. Temperature, or pressure, or both, can induce or change the degree of adhesion of the surfaces.

    The procedure of this test method closely simulates the operation of separating film in some end-use applications.

    1. 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 parentheses 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.


    2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.

    ASTM Standards

    D618 Practice for Conditioning Plastics for Testing

    D883 Terminology Relating to Plastics

    E691 Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method

    ISO Standard

    ISO11502 Determination of Blocking Resistance Available from American National Standards Institute (ANSI), 25 W. 43rd St., 4th Floor, New York, NY 10036, http://www.ansi.org.


    ICS Code

    ICS Number Code 83.140.10 (Films and sheets)

    UNSPSC Code

    UNSPSC Code 13111200(Films)


    DOI: 10.1520/D3354-11

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