ASTM D2565-2016发行信息

标准号ASTM D2565-2016

中文名 户外用塑料的氙弧型曝晒试验方法

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

发布日期2016

实施日期

废止日期无

国际标准分类号83.140.01

发布单位US-ASTM

ASTM D2565-2016适用范围

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本规程涵盖了适用于按照规程G151和G155进行的塑料氙弧暴露的具体程序和试验条件。本规程还包括试样的制备、最适合塑料的试验条件以及试验结果的评估。

1.2以国际单位制表示的数值应视为标准值。括号中给出的值是英寸-磅单位的数学转换，仅供参考，不被视为标准值。

1.3本标准不声称。。。。。。

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、热和水而导致的电气、机械和光学性能劣化的能力在许多应用中可能非常重要。本规程旨在引起与最终使用条件相关的性能变化，包括日光、水分和热量的影响。本规程中使用的暴露不是为了模拟局部天气现象造成的恶化，如大气污染、生物攻击和盐水暴露。

4.2警告X2014；当操作条件在本规程的可接受范围内变化时，结果可能会发生变化。因此，对本规程使用的所有参考必须随附根据第9节编制的报告，该报告描述了所使用的具体操作条件。参考规程G151，了解适用于使用根据本规程获得的结果的注意事项的详细信息。

注2：关于可变性来源以及解决实验室加速暴露试验设计、执行和数据分析中可变性的策略的更多信息，见指南G141。

4.3当根据与其他材料或对照物相比的性能等级评估材料的稳定性时，实验室间试验结果的再现性已被证明是良好的。6,7因此，强烈建议在试验材料的同时暴露具有已知性能的类似材料（对照物）。控制材料的试样数量较好与用于试验材料的试样数量相同。建议对每种材料至少进行三次重复，以便对结果进行统计评估。

4.4试验结果将取决于按照规程G155操作设备时的谨慎程度。重要因素包括线路电压调节、无盐或其他水沉积物、温度和湿度控制、灯和过滤器的条件和使用年限。

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