ASTM D1499 操纵塑料暴露用曝光和暴水装置(碳弧型)的操作规程（塑料用滤光明火碳弧型曝光装置的标准实施规程）

ASTM D1499-2013发行信息

标准号ASTM D1499-2013

中文名操纵塑料暴露用曝光和暴水装置(碳弧型)的操作规程

英文名Standard Practice for Filtered Open-Flame Carbon-Arc Exposures of Plastics

发布日期2013

实施日期

废止日期无

中国标准分类号G31

国际标准分类号83.080.01 (Plastics in general)

发布单位US-ASTM

ASTM D1499-2013适用范围

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 sunlight, 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 Cautionsx2014;Variation in results may be expected when operating conditions are varied within the accepted limits of this practice. Therefore, no reference to the use of this practice shall be made unless 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.

4.2.1 The spectral power distribution of light from an open-flame carbon-arc is significantly different from that produced in light and water exposure devices using other carbon-arc configurations or other light sources. The type and rate of degradation and the performance rankings produced by exposures to filtered open-flame carbon-arcs can be much different from those produced by exposures to other types of laboratory light sources.

4.2.2 Interlaboratory comparisons are valid only when all laboratories use the same type of carbon-arc, filters, and exposure conditions.

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.5,6 Therefore, exposure of a similar material of known performance (a control) at the same time as the test materials is strongly recommended. 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 G152. Significant factors include regulation of line voltage, freedom from salt or other deposits from water, temperature and humidity control, and conditions of the electrodes.

1.1 This practice covers specific procedures and test conditions that are applicable for exposure of plastics in filtered op......

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，包括阳光、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；当操作条件在本规程的可接受范围内变化时，可预期结果的变化。因此，除非附有根据第9节编制的报告，说明所用的具体操作条件，否则不得提及本规程的使用。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附加信息，见指南G141。

4.2.1明火碳弧产生的光的光谱功率分布与使用其他碳弧配置或其他光源的光和水暴露装置产生的光谱功率分布明显不同。暴露于过滤明火碳弧产生的退化类型和速率以及性能等级可能与暴露于其他类型的实验室光源产生的退化类型和速率以及性能等级大不相同。

4.2.2只有当所有实验室使用相同类型的碳弧、过滤器和暴露条件时，实验室间比较才有效。

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。5,6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）。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G152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、温度和湿度控制以及电极条件。