欧美大屁股xxxxhd黑色-无码人妻天天拍夜夜爽-国内精品国内精品自线一二三区-国产免费久久久久久无码-一本久久a精品一区二区

產品列表PRODUCTS LIST

聯系信息

  • 電話:
    189-2580-2250
  • 傳真:
    18925802250
  • 服務熱線:
    0769-82205353
首頁 > 技術與支持 > VDA 621-415
VDA 621-415
點擊次數:1457 更新時間:2019-10-21

VDA 621-415

本頁面標準信息均來源于網絡收集,或由參與標準制定的供應商提供,只作為參考使用,為確保測試結果的準確性、節省您的時間,如需VDA 621-415標準詳細信息或VDA 621-415具體測試方法,請與我們技術人員聯系或給我們留言,我們將為您提供相關的技術支持。

 

VDA 621-415英文簡介

This test procedure has been developed to judge the corrosion protection of vehicle paint using an accelerated laboratory test. It is claimed that testing according to this procedure can generate results that correlate well with those seen by driven vehicles. This test is cyclic in nature, i.e.; test specimens are exposed to changing climates over time.

Test specimens are placed in an enclosed chamber and exposed to a changing climate that comprises of the following 3 part repeating cycle. 24.0 hours exposure to salt spray according to DIN 50 021-SS. This is followed by 96.0 hours exposure to a condensing water climate according to DIN 50 017-KFW. This is followed by 48.0 hours exposure to an ambient climate of +18 to +28C according to DIN 50 014. The number of cycle repeats and therefore the test duration is variable.

Please see elsewhere in this document for details of DIN 50 021-SS, DIN 50 017-KFW & DIN 50 014.

This test is also referred to as a Cyclic Corrosion Test, often abbreviated to CCT.

 

kingjo-fog鹽霧試驗箱用于VDA 621-415鹽霧測試的流程

HONGZHAN-FOG鹽霧試驗箱用于VDA 621-415鹽霧測試的流程

 

kingjo-fog鹽霧試驗箱用于VDA 621-415鹽霧測試的流程

粵公網安備44190002001386號

主站蜘蛛池模板: 人与禽交av在线播放| 青青草原精品99久久精品66| 色欲色av免费观看| 国产成人啪精品视频网站| 精品综合久久久久久8888| 亚洲中文字幕无码天然素人| 国产av成人精品播放| 国产亚洲精品自在久久| 50岁熟妇大白屁股真爽| 亚洲 欧美 中文 日韩aⅴ| 日日碰狠狠躁久久躁| 久久久久成人精品无码| 欧美高清大屁股xxxxx| 日本成片区免费久久| 国语自产视频在线| 在线成人一区二区| 97精品伊人久久大香线蕉| 亚洲精品无码久久久久久| 亚洲a∨国产av综合av| 一本久道久久综合久久爱| 无码写真精品永久福利在线| 色婷婷精品大在线视频| 精品国偷自产在线视频九色| 国产日韩精品欧美一区喷水| 精品欧美一区二区三区久久久| 久久午夜无码免费| 丰满人妻熟妇乱又伦精品视| 国产精品无码久久av不卡| 中文精品无码中文字幕无码专区| 污污又黄又爽免费的网站| 色偷偷色噜噜狠狠网站久久| 国产成人啪精品视频免费软件| 99精品无人区乱码在线观看| 色橹橹欧美在线观看视频高清| 中文字幕亚洲无线码一区女同| 午夜福利伦伦电影理论片在线观看| 亚洲熟少妇在线播放999| 四虎精品国产永久在线观看| 国产成人精品.视频| 暖暖视频 免费 日本社区| 无码人妻精品中文字幕免费|