最近更新中文字幕mv,中文字幕无码人妻aaa片,亚洲欧美中文字幕国产,又爽又黄又无遮挡网站 ,永久黄网站色视频免费观看

河南省鑫屬實業(yè)有限公司

檢測認(rèn)證人脈交流通訊錄

氨氣氣體檢測管3D

  • 這真不是您需要的產(chǎn)品？
  • 品　　牌：
  • 主要規(guī)格：
  • 用　　途：
    • 氨氣氣體檢測管3D NH3 Ammonia，Measuring Range 2.5 to 1000 ppm Sampling Hours 0.5 to10 hours Detecting Limit 0.5 ppm (10 hours)氨氣氣體檢測管價格，氨氣氣體檢測管3D NH3 Ammonia 氨氣氣體檢測管3D NH3 Ammonia的詳細(xì)介紹 氨氣氣體檢測管3D NH3 Ammonia Ammonia No.3D NH3 Performance Measuring Range 2.5 to 1000ppm Sampling Hours 0.5 to10 hours Detecting Limit 0.5 ppm (10hours) Color Change Purple →Yellow Reaction Principle 2NH3 + H2SO4 → (NH4)2SO4 Coefficient ofVariation 10%(for 25 to 500 ppm-hr) ShelfLife 3 Year Correctionsfor temperature & humidity Temperature correction isnecessary Store the tubes atcool and dark place. Possible coexisting substances and theirinterferences (NOTE) Substance Interference Change colour byitself to Amines,Hydrazine + Yellow Aromatic amines No No Othersubstance measurable with this detectortube Substance CorrectionFactor SamplingTime MeasuringRange Dimethylamine 0.75 0.5 to 10hours 1.9 to 750 ppm N,N-Dimethylethylamine 1.6 0.5 to 10 hours 4 to 1600 ppm Hydrazine 0.65 0.5 to 10 hours 1.6 to 650 ppm Triethylamine 2.1 0.5 to 10 hours 5.3 to 2100ppm Calibration gasgeneration Diffusion tubemethod TLV-TWA TLV-STEL Explosive range 25 ppm 35ppm 15 to28%

    • 檢測通手機版

    • 檢測通官方微信

    •  檢測通QQ群