日韩欧洲精品无码AV,99国产午夜精品一区二区天美,精品久久免费一区二区三区四区,久久综合图区亚洲综合图区,久久久久亚洲AV免费观看,精子网久久国产精品,亚洲AⅤ无码一区二区二三区性色,亚洲精品国产电影,亚洲资源在线观看,婷婷五月丁香在线

  • 
    
  • <ul id="yy6ca"></ul>
  • <del id="yy6ca"></del>
    <ul id="yy6ca"></ul>
    <strike id="yy6ca"><menu id="yy6ca"></menu></strike>
    Hotline:400-880-1556

    English




    Project Introduction

    Damp heat test includes constant damp heat test and alternating damp heat test. The high and low temperature alternating humid heat test is an essential test item in the fields of aviation, automobiles, home appliances, scientific research, etc. It is used to test and determine the temperature environment of electrical, electronic and other products and materials for high temperature, low temperature, alternating humid heat or constant test The changed parameters and performance.

    For example: the temperature difference between day and night, different humidity at different temperatures and different times, the product passes through regions with different temperatures and humidity during transportation. This alternating temperature and humidity environment will affect the performance and life of the product and accelerate the aging of the product. If you are in this environment for a long time, the product needs to have sufficient resistance to alternating heat and humidity.

    Method Standard

    GB2423.22 Environmental test Part 2: Test method Test N: Temperature change

    GB2423.34 Environmental Test for Electrical and Electronic Products Part 2: Test Method Test Z/AD: Temperature/Humidity Combined Cycle Test

    GJBl50.9 Military equipment environmental test method Damp heat test

    Test parameters

    Temperature, relative humidity, conversion time, and number of alternations.


    Online consultation

    Online consultation

    Recommend
    • BSCI certification

      BSCI certification

      BSCI certification is an abbreviation of BusinessSocialComplianceInitiative, and Chinese is called business social standard certification. BSCI is an organization that advocates the business community to abide by social responsibility. At the same time, it is a non-profit organization.

    • Enterprise CMA certification

      Enterprise CMA certification

      CMA, the name is \"China Metrology Accreditation\", the abbreviation of \"China Metrology Accreditation\" in English. According to the provisions of Article 22 of the Metrology Law of the People’s Republic of China: “The product quality inspection agency that provides notarized data to the society must be evaluated by the metrological administrative department of the people’s government at or above the provincial level for the capability and reliability of metrological verification and testing. Qualified.\"

    • CNAS certification

      CNAS certification

      Laboratory accreditation is a third-party certification that CNAS has the ability to perform specific testing and calibration work for testing and calibration laboratories.

    Alternating heat and humidity test

    Damp heat test includes constant damp heat test and alternating damp heat test. The high and low temperature alternating humid heat test is an essential test item in the fields of aviation, automobiles, home appliances, scientific research, etc.

    Get a quote
    日韩高清无码免费观看| 女人18毛片A级毛片| 久久国产精品99精品国产987| 日韩一区二区精品久久高清| 1769国产精品免费视频带搜索| 曰批免费视频播放免费直播| 双乳奶水饱满少妇呻吟免费看| 亚洲欧美偷国产日韩| 亚洲精品高潮久久久久黄| 国产一区二区三区免费在线观看| 日韩不卡在线| 午夜精品久久久久久久久第一页| 婷婷五月丁香综合基地| 亚洲欧美视频| 国产三级片在线看| 麻豆国产va免费精品高清在线| 亚洲日韩精品欧美一区二区一| 天天摸夜夜摸夜夜狠狠摸| 亚洲精品无码aⅴ中文字幕| 密臀av无码免费观看| H黄动漫蜜芽在线观看| 国产成人欧美一区二区三区| 国产免费人成视频在线播放播| 少妇ⅩXX欧美另类重口0| 国产卡一卡二卡三卡四| 久久亚洲精品成人无码网站| 色综合天天综合网国产成人网| 国产日韩精品SUV| 丰满爆乳一区二区三区| 欧美成人一区二区三区在线视频 | 日本高清视频www| 在线欧美精品一区二区三区| 国产精品久久久久乳精品爆| 欧美日韩亚洲中文字幕二区| 久久一区精品| 久久综合九色综合97飘花| 中文区中文字幕免费看| 国产精品亚洲二区在线| 精品韩国亚洲AV无码不卡区| 人人爽人人澡人人人人妻| 特级精品毛片免费观看|