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27 sty 2023 · Significance and Use. 5.1 The use of this apparatus is intended to induce property changes consistent with the end use conditions, including the effects of the UV portion of sunlight, moisture, and heat. Typically, these exposures would include moisture in the form of condensing humidity.
ASTM G154 is an accelerated UV ageing test using Specific Fluorescent lights to simulate the impact of sun exposure on paints, coatings and polymers.
This standard is issued under the fixed designation G154; the number immediately following the designation indicates the year of original adoption or, in the case of revision, the year of last revision.
Accelerated weathering to simulate the damaging effects of long-term outdoor exposure of polymer materials according to ASTM G154, ASTM D4329, ASTM D4587, ISO 4892, SAE J2020.
13 paź 2021 · Micom can perform UV test as per the ASTM G154 Standard Practice for Operating Fluorescent Ultraviolet (UV) Lamp Apparatus for Exposure of Nonmetallic Materials. Learn more about the ASTM...
1 sty 2023 · Standard Practice for Operating Fluorescent Ultraviolet (UV) Lamp Apparatus for Exposure of Materials. 1.1 This practice is limited to the basic principles for operating a fluorescent UV lamp and water apparatus; on its own, it does not deliver a specific result. 1.2 It is intended to be used in... ASTM G154-16.
6.1.2.1 Aging of the glass used in some types of lamps can result in changes in transmission. Aging of glass can result in a significant reduction in the short wavelength UV emission of some lamp types, 6.1.2.2 Accumulation of dirt or other residue on lamps can affect irradiance, 6.1.2.3 Thickness of glass used for lamp tube can have large
