久久久久亚洲精品男人的天堂,日本韩国男男作爱GAYWWW,特黄AAAAAAA片免费视频,av天堂电影网

產(chǎn)品展廳收藏該商鋪

您好 登錄 注冊

當(dāng)前位置:
東莞市勤卓環(huán)境測試設(shè)備有限公司>技術(shù)文章>ASTM D4329-05

技術(shù)文章

ASTM D4329-05

閱讀:1278          發(fā)布時間:2019-8-8

ASTM D4329-05

本頁面標(biāo)準(zhǔn)信息均來源于網(wǎng)絡(luò)收集,或由參與標(biāo)準(zhǔn)制定的供應(yīng)商提供,只作為參考使用,為確保測試結(jié)果的準(zhǔn)確性、節(jié)省您的時間,如需ASTM D4329-05標(biāo)準(zhǔn)詳細(xì)信息或ASTM D4329-05具體測試方法,可與我們技術(shù)人員聯(lián)系或給我們留言,我們將為您提供相關(guān)的技術(shù)支持。

 

 

 

塑料熒光紫外線暴露測試的標(biāo)準(zhǔn)測試方法:

本測試方法規(guī)定了依照G151和G154測試方法對塑料進(jìn)行熒光紫外線暴露測試的具體程序和測試條件。

ASTM D4329-05英文版本

This standard is issued under the fixed designation D 4329; the number immediately following the designation indicates the year of original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A superscript epsilon (e) indicates an editorial change since the last revision or reapproval.

1. Scope*

1.1 This practice covers specific procedures and test conditions that are applicable for fluorescent V exposure of plastics conducted in accordance with Practices G 151 and G 154. 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 be regarded as standard. The values given in brackets are for information only.

1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

NOTE 1—This practice is technically similar to ISO 4892-3.

2. Referenced Documents

2.1 ASTM Standards:

D 3980 Practice for Interlaboratory Testing of Paint and Related Materials

D 5870 Practice for Calculating Property Retention Index of Plastics

E 691 Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method

G 113 Terminology Relating to Natural and Artificial Weathering Tests of Nonmetallic Materials

G 141 Guide for Addressing Variability in Exposure Testing on Nonmetallic Materials

G 147 Practice for Conditioning and Handling of Nonmetallic Materials for Natural and Artificial Weathering Tests

G 151 Practice for Exposing Nonmetallic Materials in Accelerated Test Devices That se Laboratory Light Sources

G 154 Practice for Operating Fluorescent Light Apparatus for V Exposure of Nonmetallic Materials

G 169 Guide for Applications of Basic Statistical Methods to Weathering Tests

G 177 Tables for Reference Solar ltraviolet Spectral Distributions: Hemispherical on 37 Degree Tilted Surface

2.2 ISO Standard:

ISO 4892-3 Plastics—Methods of Exposure to Laboratory

Light Sources—Part 3, Fluorescent V Lamps

2.3 SAE Standard:

SAE J2020 Accelerated Exposure of Automotive Exterior Materials sing a Fluorescent V and Condensation Apparatus

3. Terminology

3.1 The definitions in Terminology G 113 are applicable to this practice.

4. Significance and se

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.

 (Warning—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 should be made unless accompanied by a report prepared in accordance with Section 8 that describes the specific operating conditions used. Refer to Practice G 151 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 G 141.

4.2 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.

VA340光譜圖

收藏該商鋪

登錄 后再收藏

提示

您的留言已提交成功!我們將在第一時間回復(fù)您~

對比框

產(chǎn)品對比 產(chǎn)品對比 聯(lián)系電話 二維碼 意見反饋 在線交流

掃一掃訪問手機(jī)商鋪
189-2580-2250
在線留言
色婷婷综合中文久久一本| 欧美日韩亚洲综合在线| 2020国产精品永久在线观看| 青青草原综合久久大伊人精品| 18禁裸男晨勃露J毛免费观看| 亚洲2022国产成人精品无码区| 国产亚洲AV夜间福利香蕉149| 九九99九九精彩网站| 伦理电影 先锋影音| 欧美亚洲色综久久精品国产 | 欧美日韩精品免费一区二区三区| 沈阳老阿姨最后的巅峰| 国产精品自产拍在线观看| 特级做A爰片毛片免费看| 美里有纱在线播放| 一区二区三区四区精品视频在线观看| 久久久国产精品四虎| 亚洲一欧洲中文字幕在线| 欧美日韩精品久久久| 日韩极品精品一区二区三区| 国产AV麻豆MAG剧集| 丁香花高清在线观看完整版| 国产亚洲男人天堂| 精品国产乱码一区二区三区| 色噜噜狠狠狠狠色综合久一| 狠狠躁夜夜躁人人爽天天BL| 国产精品v欧美精品| 国产在线不卡视频| AAAAA少妇高潮大片| 96精品专区国产在线观看高清| 亚洲欧美日韩中文字幕天堂| 999国内精品永久免费观看| 国产AⅤ激情无码久久| 国产乱妇乱子视频在播放| 久久精品久久久久久噜噜| 少妇高潮喷水在线观看| 爆乳放荡的女教师BD| AV无码中文字幕不卡一区二区三区| 久久国产劲爆AV内射—百度| 欧美日韩精品久久久免费观看| 亚洲一区二区日韩欧美gif|