ASTM C1589/C1589M-17由美國材料與試驗協會 US-ASTM 發布于 2017。
ASTM C1589/C1589M-17 在中國標準分類中歸屬于: Q24 密封材料，在國際標準分類中歸屬于: 91.100.50 粘合料、密封材料。
ASTM C1589/C1589M-17 建筑密封材料和密封劑的室外風化的標準實施規程的最新版本是哪一版？
最新版本是 ASTM C1589/C1589M-18(2023) 。
4.1 Tests conducted in accordance with this practice are used to evaluate the weatherability of construction seals and sealant materials when they are exposed to outdoor weather conditions. The weatherability of seals and sealants in actual outdoor use can be very different depending on the location because of differences in solar radiation, moisture, temperature, pollutants, and other factors. Sealant color may also affect weatherability.
4.2 This practice allows for three options: Option 1 – Procedure A in which the effect of movement during weathering is not considered; Option 2 – Procedure B in which specimens are weathered in conjunction with movement based on thermal changes. The applied strain is proportional to a combination of the temperature at the time the equipment is set up and subsequent thermal changes. This option closely mimics the actual movements that occur in many sealant installations, but is less repeatable than the movement in Procedure C; Option 3 – Procedure C in which the strain during weathering is manually applied. This procedure allows for excellent control and repeatability, but is less representative of movement in actual use conditions than the movement in Procedure B. Options 2 and 3 have been added to this practice based on peer reviewed scientific literature demonstrating that applied strain separately and in combination with other weathering stresses causes changes in the weatherability of sealants.
4.3 The type, frequency and amount of movement of sealants varies with location and may affect weatherability. It cannot be assumed, therefore, that results from one exposure in a single location will be useful for determining weatherability in a different location. Exposures in several locations with different climates (for example, solar radiation, moisture, temperature, pollutants, biological and other factors) that represent a broad range of anticipated service conditions are recommended.
4.4 It is strongly recommended that control materials of similar composition and construction to the test specimens and with known weatherability be exposed along with the test specimens for the purpose of comparing the performance of test materials to the controls. (See 6.2).
4.5 The results of short-term exposure tests can provide an indication of relative outdoor performance, but they shall not be used to predict the absolute long-term performance of a seal or sealant material. The results of tests conducted for less than 12 months will depend on the particular season of the year in which they begin.
4.6 Because of year-to-year climatatological variations, results from a single exposure test cannot be used to predict the absolute rate at which a seal or sealant degrades. Several years of repeat exposures are needed to determine an average test result for a given location.
4.7 Climatic and construction factors can impose cyclic movement upon sealed joints in use. This movement can impact the effects of outdoor weathering and often causes types of failure that are not produced by weathering without movement. Thus, the ability of building joint sealants to withstand temperature-induced movements of compression and expansion is an import......
Atlas為各種建筑產品提供標準和定制的環境耐久性測試設備和服務，包括：l?窗飾產品和建筑玻璃l?瀝青，聚合物和金屬屋頂及通風口l?涼棚材料l?乙烯基，復合材料，木材和其他外墻材料l?建筑油漆和液體應用屏障l?建筑五金及配件，裝飾用品l?土工膜，土工格柵，灌溉和排水l?木材，WPC復合材料，聚合物甲板和圍欄l?混凝土，攤鋪機，CMU著色劑和涂料l?建筑立面組件，膠粘劑和密封劑，EIFS材料l?工業和技術紡織品...
光伏組件材料（例如背板和密封劑）也進行了類似的測試，完整的光伏組件可以在室外以及在太陽能測試中心的大型太陽能/環境實驗室中進行測試。阿特拉斯開發了專有的阿特拉斯25+光伏組件耐久性測試程序，用于評估組件對環境退化的耐久性。...
光伏組件材料（例如背板和密封劑）也進行了類似的測試，完整的光伏組件可以在室外以及在太陽能測試中心的大型太陽能/環境實驗室中進行測試。阿特拉斯開發了專有的阿特拉斯25+光伏組件耐久性測試程序，用于評估組件對環境退化的耐久性。...
這些包括：?l?在各種氣候下的室外靜態機架暴露情況。Atlas的主要戶外測試地點位于美國南佛羅里達州和美國的亞利桑那索諾蘭沙漠，印度的欽奈和法國的邦多地區。此外，阿特拉斯（Atlas）已建立了由20多個全球站點組成的全球暴露網絡，以在各種氣候和位置提供測試。??l?特殊測試室和固定裝置，用于以最終使用方向暴露建筑產品?l?加速室外太陽跟蹤和集中曝光。...
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