ASTM D3349 - 12

    Standard Test Method for Absorption Coefficient of Ethylene Polymer Material Pigmented with Carbon Black

    Active Standard ASTM D3349 | Developed by Subcommittee: D09.18

    Book of Standards Volume: 10.02


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    ASTM D3349

    Significance and Use

    The absorption coefficient of polyolefin polymer pigmented with carbon black is useful to judge the degree and uniformity of dispersion of the pigment, and the adequacy of the quantitative level of pigment addition. These factors are used to predict the performance of the polymer material in response to prolonged exposure to ultraviolet light as evidenced by minimal changes in specific properties.

    Note 1—This test method was developed to evaluate ethylene polymer materials pigmented with small particle size carbon blacks suitable for UV protection. It is not known how accurate and reproducible the test would be with larger (35 nm or greater) particle size blacks.

    1. Scope

    1.1 This test method measures the amount of light transmitted through a film of carbon black pigmented ethylene polymer.

    1.2 After calculation of the amount of light and film thickness, an absorption coefficient is calculated.

    1.3 Whenever two sets of values are presented, in different units, the values in the first set are the standard, while those 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.


    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

    D1248 Specification for Polyethylene Plastics Extrusion Materials for Wire and Cable

    E60 Practice for Analysis of Metals, Ores, and Related Materials by Spectrophotometry


    ICS Code

    ICS Number Code 83.080.20 (Thermoplastic materials)

    UNSPSC Code

    UNSPSC Code 13111016(Polyethylene)


    DOI: 10.1520/D3349-12

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