Ultraviolet solar transmittance

Under-glass weathering. This exposure technique places the specimen behind a glass-covered frame, protecting it from any direct rainfall. The solar transmittance properties of the glass filter out a significant amoimt of the harmful ultraviolet. This method is used to test interior materials. 

ISO 10977 1993(E). Photography—Processed Photographic Color Films and Transmittance, Solar Direct, Total Solar Energy Transmittance and Ultraviolet Transmittance, and Related Glazing Factors. Geneva ISO, 1993. 

International Organization for Standardization. Photography processed photographic colour films and transmittance, solar direct, total solar energy transmittance and ultraviolet transmittance, and related glazing factors. ISO 10977 1993(E). Geneve, Switzerland International Organization for Standardization. 

ISO 10977 1993(E), Photography processed colour films transmittance, solar direct, total solar energy transmittance and ultraviolet transmittance and glazing factors. International Organization for Standardization (ISO). Case Postale 56, CH-1211 Geneve, Switzerland. Roberts LK, Beasley DG, Learn DB, Giddens LD, Beard J, Stanfield ]W. Ultraviolet spectral energy differences affect the ability of sunscreen lotions to prevent ultraviolet-radiation-induced immimosuppression. Photochem Photobiol 1996 63(6) 874-884. 

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