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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>111U乙酸乙酯氣體檢知管 111U ETHYL ACETATE CH3CO2C2H5 10-1000ppm

                      乙酸乙酯氣體檢知管 111U ETHYL ACETATE CH3CO2C2H5 10-1000ppm

                      簡(jiǎn)要描述:

                      乙酸乙酯氣體檢知管 111U ETHYL ACETATE CH3CO2C2H5 10-1000ppm,氣體檢測(cè)管是在一個(gè)固定長(zhǎng)度和內(nèi)徑的玻璃管內(nèi),裝填一定量的檢測(cè)劑,用塞料加以固定,再將玻璃管兩端熔封。使用時(shí)將管子兩端割斷,讓含有被測(cè)物質(zhì)的氣體定量地通過(guò)管子,被測(cè)物質(zhì)即和管中檢測(cè)劑發(fā)生定量化學(xué)反應(yīng),部分檢測(cè)劑被染色,其染色長(zhǎng)度與被測(cè)物濃度成正比,從檢測(cè)管上已印制好的刻度即得知被測(cè)氣體的濃度。

                      更新時(shí)間:2025-01-01

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                      乙酸乙酯氣體檢知管 111U ETHYL ACETATE CH3CO2C2H5 10-1000ppm

                      乙酸乙酯氣體檢知管 111U ETHYL ACETATE CH3CO2C2H5 10-1000ppm

                      Tube 11U

                      1. PERFORMANCE
                      1) Measuring range :20-1,000 ppm
                      Number of pump strokes 1(100ml)
                      2) Sampling time :1.5 minutes/1 pump stroke
                      3) Detectable limit :10 ppm
                      4) Shelf life : :2 years
                      5) Operating temperature :10~40℃
                      6) Temperature compensation :Necessary(See "TEMPERATURE CORRECTION TABLE")
                      7) Reading :Direct reading from the scale calibrated by 1 pump stroke
                      8) Colour change :Yellow→Brown
                      2. RELATIVE STANDARD DEVIATION
                      RSD-low:10% RSD-mid.:10% RSD-high:5%
                      3. CHEMICAL REACTION
                      Chromium oxide is reduced.
                      CH3CO2C2H5+Cr6++H2SO4→Cr3+
                      4. CALIBRATION OF THE TUBE
                      GAS CHROMATOGRAPHY
                      5. INTERFERENCE AND CROSS SENSITIVITY
                      GAS To pump
                      1000
                      800
                      600
                      400
                      200
                      100
                      50
                      20
                      ?? ??
                      111U ETHYL ACETATE
                      TEMPERATURE CORRECTION TABLE
                      Scale True Concentration (ppm)
                      Readings 10℃ 15℃ 20℃ 25℃ 30℃ 35℃ 40℃
                      (ppm) (50°F) (59°F) (68°F) (77°F) (86°F) (95°F) (104°F)
                      1,000 1,330 1,200 1,000 830 700 600 500
                      800 1,080 950 800 670 550 470 400
                      600 830 720 600 500 420 380 300
                      400 570 480 400 330 280 240 200
                      200 280 240 200 170 140 120 100
                      100 150 120 100 80 70 60 50
                      50 70 60 50 40 30 20 10
                      20 30 25 20 15 10 7 4
                      Substance Interference Coexistence
                      Alcohols Similar stain is produced. Higher reading are given.
                      Esters 〃〃
                      Ketones 〃〃
                      Aromatic hydrocarbons 〃〃
                      Whole reagent is discoloured to It the top of brown stain is clear,
                      Paraffin hydrocarbons Pale brown. athffee catcecdu.racy of readings is not
                      Halogenated hydrocarbons FIG.1 〃〃
                      0
                      200
                      400
                      600
                      800
                      1000
                      Trichloroethylene〔ppm〕?
                      FIG.1 Influence of Trichloroethylene
                      Ethyl acetate indicating value 〔ppm〕
                      100 200 300

                      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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