STP1202

    Solar Ultraviolet Radiation: Aspects of Importance to the Weathering of Materials

    Published: Jan 1994


      Format Pages Price  
    PDF Version (552K) 24 $25   ADD TO CART
    Complete Source PDF (5.3M) 24 $69   ADD TO CART


    Abstract

    Constituents of the stratosphere and troposphere that serve to define the solar ultraviolet spectral energy distribution that is important to the outdoor deterioration of polymer-based materials are reviewed. Particular attention is devoted to the influence of ozone ⋯ both from an historical sense, and on the basis of the latest information available on the relationship between ozone depletion and the spectral energy distribution in the so-called ozone cut-off region of the solar radiation spectrum. The significance of the historically accepted solar ultraviolet spectrum, as well as that predicted on the basis of, for example, 10 and 20% decreases in total column ozone, are discussed in terms of [1] correctly measuring ultraviolet radiation in the spectral region of importance to materials, [2] assessing the effects of solar ultraviolet radiation on such materials, and [3] simulating the spectral energy distribution of solar ultraviolet radiation in indoor exposure test scenarios.

    Keywords:

    solar, ultraviolet, radiation, UV-B, radiometers, ozone, exposure, weathering, outdoor exposure, indoor exposure testing


    Author Information:

    Zerlaut, GA
    President, SC-International Inc., Phoenix, AZ


    Paper ID: STP18170S

    Committee/Subcommittee: G03.05

    DOI: 10.1520/STP18170S


    CrossRef ASTM International is a member of CrossRef.