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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(yè)>產(chǎn)品中心>日本光明北川式氣體檢測(cè)管>氣體快速檢測(cè)管>119SA甲醇CH3OH氣體檢測(cè)管119SA METHYL ALCOHOL(METHANOL) 0.05-6%

                      甲醇CH3OH氣體檢測(cè)管119SA METHYL ALCOHOL(METHANOL) 0.05-6%

                      簡(jiǎn)要描述:

                      甲醇CH3OH氣體檢測(cè)管119SA METHYL ALCOHOL(METHANOL) 0.05-6.0%,甲醇系結(jié)構(gòu)Z為簡(jiǎn)單的飽和一元醇,化學(xué)式CH3OH。又稱“木醇"或“木精"。是無色有酒精氣味易揮發(fā)的液體。有毒,誤飲5~10毫升能雙目失明,大量飲用會(huì)導(dǎo)致死亡。甲醇易燃,其蒸氣與空氣能形成爆炸混合物,甲醇*燃燒生成二氧化碳和水蒸氣,同時(shí)放出熱量。方程式:2CH3OH+3O2=2CO2+4H2O 工業(yè)制法和儲(chǔ)備工業(yè)上用一氧化碳和氫氣的混合氣(合成氣)在一定的條件下制備甲醇

                      更新時(shí)間:2024-12-26

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                      甲醇CH3OH氣體檢測(cè)管119SA METHYL ALCOHOL(METHANOL) 0.05-6%

                      甲醇CH3OH氣體檢測(cè)管119SA METHYL ALCOHOL(METHANOL) 0.05-6.0%

                      Tube 19SA

                      1. PERFORMANCE
                      1) Measuring range :0.05-6.0%
                      Number of pump strokes 1(100ml)
                      2) Sampling time :1.5 minutes/1 pump stroke
                      3) Detectable limit :100 ppm
                      4) Shelf life :3 years
                      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 orange→Pale green
                      2. RELATIVE STANDARD DEVIATION
                      RSD-low:10% RSD-mid.:5% RSD-high:5%
                      3. CHEMICAL REACTION
                      Potassium dichromate is reduced
                      CH3OH+Cr6++H2SO4→Cr3+
                      4. CALIBRATION OF THE TUBE
                      GAS CHROMATOGRAPHY
                      5. INTERFERENCE AND CROSS SENSITIVITY
                      0.05
                      0.1
                      0.5
                      1.0
                      2.0
                      3.0
                      4.0
                      5.0
                      6.0
                      %
                      GAS To pump
                      DEHUMIDIFIER
                      (White)
                      119SA
                      METHYL ALCOHOL
                      (METHANOL)
                      Substance Interference ppm Coexistence
                      Paraffin (morefi nth haynd Cro3c)arbons FIG.1 Similar stain is produced. Higher readings are given.
                      Alcohols FIG.2 〃〃
                      Esters 〃50 〃
                      Ketones 〃〃
                      Aromatic hydrocarbons 〃〃
                      Reagent is discoloured to If the top of the discolouration can
                      Halogenated hydrocarbons Brown slightly. ibneg so bist aninoet da,fftehcet eadc.curacy of read-
                      (NOTE)
                      Although the top of light green stain changes to Brown gradually, read the concentration on the top of the light
                      green stain shortly.
                      0
                      5
                      6
                      3
                      4
                      Hexane〔%〕?
                      FIG.1 Influence of Hexane
                      Methanol indicating value 〔%〕
                      0.1 0.2 0.3
                      2
                      1
                      0
                      5
                      6
                      3
                      4
                      Ethanol〔%〕?
                      FIG.2 Influence of Ethanol
                      Methanol indicating value 〔%〕
                      0.1 0.2 0.3 0.4 0.5
                      2
                      1
                      Coexistence
                      Interference
                      TEMPERATURE CORRECTION TABLE
                      Scale True Concentration (%)
                      Readings 0℃ 10℃ 20℃ 30℃ 40℃
                      (%) (32°F) (50°F) (68°F) (86°F) (104°F)
                      6.0 6.0 4.3 3.3
                      5.0 5.0 3.7 2.8
                      4.0 4.0 3.0 2.3
                      3.0 5.1 3.0 2.3 1.8
                      2.0 3.0 2.0 1.6 1.2
                      1.0 2.7 1.4 1.0 0.8 0.6
                      0.5 1.0 0.7 0.5 0.4 0.3
                      0.1 0.1 0.1 0.1 0.1 0.1

                      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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