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                    1. 韩国三级大全久久网站_色噜噜一区二区三区_高清欧美性猛交xxxx黑人猛_激情五月开心婷婷_来一水AV@lysav

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                      首頁>產(chǎn)品中心>日本光明北川式氣體檢測管>氣體快速檢測管>128SD丙烯腈檢測管128SD ACRYLONITRILE CH2=CHCN 0.2-20ppm

                      丙烯腈檢測管128SD ACRYLONITRILE CH2=CHCN 0.2-20ppm

                      簡要描述:

                      丙烯腈檢測管128SD ACRYLONITRILE CH2=CHCN 0.2-20ppm,氣體檢測管是用來檢測某種氣體在某一環(huán)境中所含濃度的簡易檢測裝置,通過檢測劑與被檢測氣體的反應(yīng)而出現(xiàn)顏色變化,來表示所測環(huán)境中的氣體濃度。在不用任何能源、電源的情況下,具有操作簡單、使用范圍廣、檢測準確、即時性強和經(jīng)濟的特點。

                      更新時間:2024-12-25

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                      丙烯腈檢測管128SD ACRYLONITRILE CH2=CHCN 0.2-20ppm

                      丙烯腈檢測管128SD ACRYLONITRILE CH2=CHCN 0.2-20ppm

                      Tube 28SD
                      1. PERFORMANCE
                      1) Measuring range :1-20 ppm 0.5-10 ppm 0.25-5 ppm 0.2-4 ppm
                      Number of pump strokes 1(100mr) 2(200mr) 4(400mr) 5(500mr)
                      2) Sampling time :1.5 minutes/1 pump stroke
                      3) Detectable limit :0.05ppm(500mr)
                      4) Shelf life :1 year (Necessary to store in refrigerated place ; 0~10℃)
                      5) Operating temperature :0~40℃
                      6) Temperature compensation :Necessary(See "TEMPERATURE CORRECTION TABLE")
                      7) Reading :Direct reading from the scale calibrated by 1 pump stroke
                      8) Colour change :Yellow→Red
                      2. RELATIVE STANDARD DEVIATION
                      RSD-low:10% RSD-mid.:5% RSD-high:5%
                      3. CHEMICAL REACTION
                      By decomposing with an Oxidizer, Hydrogen cyanide is produced, Hydrogen cyanide reacts with Mercuric
                      chloride, then Hydrogen chloride is liberated and PH indicator is discoloured.
                      CH2=CHCN+CrO3+H2SO4→HCN
                      HCN+HgCI2→HCI
                      4. CALIBRATION OF THE TUBE
                      GAS CHROMATOGRAPHY
                      5. INTERFERENCE AND CROSS SENSITIVITY
                      125
                      15
                      20
                      10
                      ppm
                      100ml
                      GAS To pump
                      (Reddish brown)
                      PRETREAT TUBE DETECTOR TUBE
                      128SD ACRYLONITRILE
                      Substance Interference ppm Coexistence
                      Butadiene
                      Less than
                      350 ppm Not affected.
                      Toluene
                      Less than
                      600 ppm 〃
                      Hexane
                      Less than
                      800 ppm 〃
                      Styrene
                      Less than
                      720 ppm 〃
                      (NOTE)
                      In case of 2 to 5 pump strokes can be used to detemine the lower concentration.
                      Following formula is available for actual concentration.
                      Actual concentration=Tmperature corrected value×
                      TEMPERATURE CORRECTION TABLE
                      Scale True Concentration (ppm)
                      Readings 0℃ 10℃ 20℃ 30℃ 40℃
                      (ppm) (32°F) (50°F) (68°F) (86°F) (104°F)
                      20 26 22.5 20 18 17
                      18 23 20 18 16.5 15.5
                      16 20.5 18 16 15 14
                      14 18 15.5 14 13 12
                      12 15.5 13.5 12 11 10.5
                      10 13 11 10 9.5 9
                      8 10.5 9 8 7.5 7
                      6 8 7 6 6 5.5
                      4 5.5 4.5 4 4 4
                      2 3 2 2 2 2
                      1 1.5 1 1 1 1
                      1
                      Number of strokes
                      www.r-biopharm.com.cn
                      www.r-biopharm.com.cn

                      韩国三级大全久久网站_色噜噜一区二区三区_高清欧美性猛交xxxx黑人猛_激情五月开心婷婷_来一水AV@lysav
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