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    ASTM D2176 - 16(2021)

    Standard Test Method for Folding Endurance of Paper and Plastics Film by the M.I.T. Tester

    Active Standard ASTM D2176 | Developed by Subcommittee: D20.15

    Book of Standards Volume: 08.01

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    Significance and Use

    4.1 The folding endurance is frequently used to estimate the ability of the paper and plastics film to withstand repeated bending, folding, and creasing.

    4.2 Folding endurance has also been found useful in measuring the deterioration of paper and plastics film upon aging.

    1. Scope

    1.1 This test method describes the use of the M.I.T.-type folding apparatus for determining folding endurance of paper and plastics film. The M.I.T. tester can be adjusted for samples of any thickness; however, if the outer layers thicker than about 0.25 mm (0.01 in.) rupture during the first few folds, the test loses its significance. The procedure for the Schopper-type apparatus is given in Test Method D643.

    1.2 The values stated in SI units are to be regarded as standard. The values given in parentheses are mathematical conversions to inch-pound units that are provided for information only and are not considered standard

    1.3 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.

    1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

    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

    D585 Practice for Sampling and Accepting a Single Lot of Paper, Paperboard, Fiberboard, and Related Product

    D643 Test Method for Folding Endurance of Paper by the Schopper Tester

    D685 Practice for Conditioning Paper and Paper Products for Testing

    D1968 Terminology Relating to Paper and Paper Products

    E122 Practice for Calculating Sample Size to Estimate, With Specified Precision, the Average for a Characteristic of a Lot or Process

    ICS Code

    ICS Number Code 85.100 (Equipment for the paper industry)

    UNSPSC Code

    UNSPSC Code 14110000(Paper products); 13111200(Films)

    Referencing This Standard
    Link Here
    Link to Active (This link will always route to the current Active version of the standard.)

    DOI: 10.1520/D2176-16R21

    Citation Format

    ASTM D2176-16(2021), Standard Test Method for Folding Endurance of Paper and Plastics Film by the M.I.T. Tester, ASTM International, West Conshohocken, PA, 2021, www.astm.org

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