Historical
ASTM E2141-12
Standard Test Methods for Assessing the Durability of Absorptive Electrochromic Coatings on Sealed Insulating Glass Units
1.1 These test methods cover the accelerated aging and monitoring of the time-dependent performance of electrochromic glazings. Cross sections of typical electrochromic windows are shown in which devices have four or five-layers of coatings that include the two or three active layers sandwiched between transparent conducting electrodes (TCOs, see Section 3).
1.2 The test methods are applicable only for multilayered (two or more coatings between the TCOs) absorptive electrochromic coatings on sealed insulating glass (IG) units fabricated for vision glass (superstrate and substrate) areas for use in buildings, such as sliding doors, windows, skylights, and exterior wall systems. The multilayers used for electrochromically changing the optical properties may be inorganic or organic materials between the superstrate and substrate.
1.3 The electrochromic coatings used in this test method are exposed to solar radiation and are deployed to control the amount of radiation by absorption and reflection and thus, limit the solar heat gain and amount of solar radiation that is transmitted into the building.
1.4 The test methods are not applicable to other chromogenic devices, such as, photochromic and thermochromic devices.
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