ASTM D2565-2016發行信息

標準號ASTM D2565-2016

中文名 戶外用塑料的氙弧型曝曬試驗方法

英文名 Standard Practice for Xenon-Arc Exposure of Plastics Intended for Outdoor Applications

發布日期2016

實施日期

廢止日期無

國際標準分類號83.140.01

發布單位US-ASTM

ASTM D2565-2016適用范圍

1.1 This practice covers specific procedures and test conditions that are applicable for xenon-arc exposure of plastics conducted in accordance with Practices G151 and G155. This practice also covers the preparation of test specimens, the test conditions best suited for plastics, and the evaluation of test results.

1.2 The values stated in SI units are to be regarded as standard. The values given in parentheses are mathematical conversions to inch-pound units that are provided for information only and are not considered standard.

1.3 This standard does not purport ......

1.1本規程涵蓋了適用于按照規程G151和G155進行的塑料氙弧暴露的具體程序和試驗條件。本規程還包括試樣的制備、最適合塑料的試驗條件以及試驗結果的評估。

1.2以國際單位制表示的數值應視為標準值。括號中給出的值是英寸-磅單位的數學轉換，僅供參考，不被視為標準值。

1.3本標準不聲稱。。。。。。

4.1 The ability of a plastic material to resist deterioration of its electrical, mechanical, and optical properties caused by exposure to light, heat, and water can be very significant for many applications. This practice is intended to induce property changes associated with end-use conditions, including the effects of daylight, moisture, and heat. The exposure used in this practice is not intended to simulate the deterioration caused by localized weather phenomena, such as, atmospheric pollution, biological attack, and saltwater exposure.

4.2 Cautionx2014;Variations in results are possible when operating conditions are varied within the accepted limits of this practice. Therefore, all references to the use of this practice must be accompanied by a report prepared in accordance with Section 9 that describes the specific operating conditions used. Refer to Practice G151 for detailed information on the caveats applicable to use of results obtained in accordance with this practice.

NOTE 2: Additional information on sources of variability and on strategies for addressing variability in the design, execution, and data analysis of laboratory-accelerated exposure tests is found in Guide G141.

4.3 Reproducibility of test results between laboratories has been shown to be good when the stability of materials is evaluated in terms of performance ranking compared to other materials or to a control.6,7 Therefore, exposure of a similar material of known performance (a control) at the same time as the test materials is strongly recommended. It is preferable that the number of specimens of the control material be the same as that used for test materials. It is recommended that at least three replicates of each material be exposed to allow for statistical evaluation of results.

4.4 Test results will depend upon the care that is taken to operate the equipment in accordance with Practice G155. Significant factors include regulation of line voltage, freedom from salts or other deposits from water, temperature and humidity control, and condition and age of the lamp and filters.

4.1塑料材料抵抗因暴露于光、熱和水而導致的電氣、機械和光學性能劣化的能力在許多應用中可能非常重要。本規程旨在引起與最終使用條件相關的性能變化，包括日光、水分和熱量的影響。本規程中使用的暴露不是為了模擬局部天氣現象造成的惡化，如大氣污染、生物攻擊和鹽水暴露。

4.2警告X2014；當操作條件在本規程的可接受范圍內變化時，結果可能會發生變化。因此，對本規程使用的所有參考必須隨附根據第9節編制的報告，該報告描述了所使用的具體操作條件。參考規程G151，了解適用于使用根據本規程獲得的結果的注意事項的詳細信息。

注2：關于可變性來源以及解決實驗室加速暴露試驗設計、執行和數據分析中可變性的策略的更多信息，見指南G141。

4.3當根據與其他材料或對照物相比的性能等級評估材料的穩定性時，實驗室間試驗結果的再現性已被證明是良好的。6,7因此，強烈建議在試驗材料的同時暴露具有已知性能的類似材料（對照物）。控制材料的試樣數量較好與用于試驗材料的試樣數量相同。建議對每種材料至少進行三次重復，以便對結果進行統計評估。

4.4試驗結果將取決于按照規程G155操作設備時的謹慎程度。重要因素包括線路電壓調節、無鹽或其他水沉積物、溫度和濕度控制、燈和過濾器的條件和使用年限。

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