ASTM E171 / E171M - 11

    Standard Practice for Conditioning and Testing Flexible Barrier Packaging

    Active Standard ASTM E171 / E171M | Developed by Subcommittee: F02.50

    Book of Standards Volume: 15.10


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    Significance and Use

    Conditioning is used to minimize the variation in test results that may result from fluctuations in temperature and humidity, or both. Many flexible packaging materials or components of flexible packaging materials, particularly materials that are hygroscopic, undergo changes in physical properties as the temperature and the relative humidity (RH) to which they are exposed are varied.

    Many packaging materials do not exhibit a meaningful change in physical properties across the temperature and humidity range that is generally found in office and general laboratory settings. As a result, conditioning of samples is often not required in order to achieve useful test results and is often bypassed during routine testing.

    Conditioning should be considered when (a) comparing between or among laboratory results (for example, supplier and customer), (b) temperature or humidity is anticipated to have an effect on the test outcomes, or (c) potential sources of variation in test results must be minimized.

    Temperature and humidity alone are not sufficient to completely define a storage condition. Many other factors may be relevant (such as time, light, and atmospheric pressure) that are not defined in this specification.

    1. Scope

    1.1 This specification defines the standard temperature and humidity for conditioning and testing of flexible barrier packaging and flexible barrier packaging materials at nominally ambient conditions.

    1.2 There are many other temperature and humidity conditions that may be appropriately used to test end use conditions (such as freezer, refrigerated, or abusive storage). These need to be individually established and are not in the scope of this practice.

    1.3 Only those materials that fall under the general area of flexible barrier packaging materials are included in this practice.

    1.4 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard.

    ^REFERENCE:

    ASTM Standards:

    D4332 Practice for Conditioning Containers, Packages, or Packaging Components for Testing

    F17 Terminology Relating to Flexible Barrier Packaging

    F2825 Practice for Climatic Stressing of Packaging Systems for Single Parcel Delivery


    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

    D4332 Practice for Conditioning Containers, Packages, or Packaging Components for Testing

    F17 Terminology Relating to Flexible Barrier Packaging

    F2825 Practice for Climatic Stressing of Packaging Systems for Single Parcel Delivery


    ICS Code

    ICS Number Code 19.040 (Environmental testing)

    UNSPSC Code

    UNSPSC Code 24120000(Packaging materials)


    DOI: 10.1520/E0171_E0171M-11

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