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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>122SC環(huán)氧乙烷CH3CHCH2O氣體檢測(cè)管122SC ETHYLENE OXIDE 3-70ppm

                      環(huán)氧乙烷CH3CHCH2O氣體檢測(cè)管122SC ETHYLENE OXIDE 3-70ppm

                      簡(jiǎn)要描述:

                      環(huán)氧乙烷CH3CHCH2O氣體檢測(cè)管122SC ETHYLENE OXIDE 3-70ppm,檢測(cè)管特點(diǎn): (1)對(duì)大多存在可燃性易爆氣體、有毒氣體及窒息性氣體,放射性物質(zhì)的放射性都可定量測(cè)量 ①操作簡(jiǎn)便:將檢測(cè)管插在手動(dòng)氣泵上抽(100ml)定量氣體即可。 ②分析速度快:一般僅需幾十秒至幾分鐘即可得知結(jié)果,其分析速度是任何化學(xué)分析和儀器方法不能比擬的。 ③測(cè)量精度高:該方法準(zhǔn)確度誤差一般有效量程為7%~15%, ④適應(yīng)性好:每種檢測(cè)管都有1種到幾種不等的大小范圍的選擇。

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

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                      環(huán)氧乙烷CH3CHCH2O氣體檢測(cè)管122SC ETHYLENE OXIDE 3-70ppm

                      環(huán)氧乙烷CH3CHCH2O氣體檢測(cè)管122SC ETHYLENE OXIDE 3-70ppm

                      Tube 22SC

                      1. PERFORMANCE
                      1) Measuring range :1-15 ppm
                      Number of pump strokes :3(300ml)
                      2) Sampling time :4.5 minutes/3 pump strokes
                      3) Detectable limit :0.5 ppm
                      4) Shelf life :3 years
                      5) Operating temperature :10~40℃
                      6) Temperature compensation :Necessary(See "TEMPERATURE CORRECTION TABLE")
                      7) Reading :Direct reading from the scale calibrated by 3 pump strokes
                      8) Colour change :Pale pink→Yellow
                      2. RELATIVE STANDARD DEVIATION
                      RSD-low:10% RSD-mid.: 5% RSD-high:5%
                      3. CHEMICAL REACTION
                      By decomposing with an Oxidizer, Formic acid is produced and PH indicator is discoloured.
                      CH2CH2O+H2SO4→HOCH2CH2OH
                      HOCH2CH2OH+HIO4→2HCHO+HIO3+H2
                      HCHO+HIO4+H2SO4→HCOOH+HIO3
                      HCOOH+NaOH→Na(HCOO)+O2
                      4. CALIBRATION OF THE TUBE
                      GAS CHROMATOGRAPHY
                      5. INTERFERENCE AND CROSS SENSITIVITY
                      ????
                      ????
                      ????
                      ????
                      ????
                      ????
                      ????
                      GAS ???? To pump
                      DETECTOR TUBE
                      (White)
                      PRETREAT TUBE
                      15
                      10
                      5
                      1
                      ppm
                      300
                      ml
                      122SC ETHYLENE OXIDE
                      Substance Interference Coexistence
                      Aldehydes FIG.2 Similar stain is produced. Higher readings are given.
                      Sulphur dioxide Pale yellow stain is produced. 〃
                      Hydrogen sulphide FIG.1 〃〃
                      0
                      20
                      10
                      Hydrogen sulphide〔ppm〕?
                      FIG.1 Influence of Hydrogen sulphide
                      Ethylene oxide indicating value 〔ppm〕
                      1 2
                      Coexistence
                      Interference
                      0
                      20
                      10
                      Formaldehyde〔ppm〕?
                      FIG.2 Influence of Formaldehyde
                      Ethylene oxide indicating value 〔ppm〕
                      10 20
                      Coexistence
                      Interference
                      TEMPERATURE CORRECTION TABLE
                      Scale True Concentration (ppm)
                      Readings 10℃ 15-25℃ 30℃ 40℃
                      (ppm) (50°F) (59°F) (86°F) (77°F)
                      15 19 15 13 10
                      10 12.5 10 8.5 7
                      5 6 5 4 3.5
                      1 1 1 1 1

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