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        1. 上海境宣實業(yè)有限公司
          中級會員 | 第16年

          17601355022

          當(dāng)前位置:上海境宣實業(yè)有限公司>>日本光明北川式氣體檢測管>>氣體快速檢測管>> 157SB甲基溴氣體檢測管157SB METHYL BROMIDE 20-250ppm

          甲基溴氣體檢測管157SB METHYL BROMIDE 20-250ppm

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          產(chǎn)品型號157SB

          品       牌

          廠商性質(zhì)代理商

          所  在  地上海市

          更新時間:2024-11-20 10:29:31瀏覽次數(shù):1646次

          聯(lián)系我時,請告知來自 化工儀器網(wǎng)
          157SB METHYL BROMIDE (-) 157SB甲基溴,CH3CHCLCH2Cl又稱氯化丙烯,1,2-二氯丙烷;氯化丙烯;DCP;1,2-Dichloropropane,20-250ppm 總代理銷售日本光明理化學(xué)工業(yè)株式會社北川式氣體檢測管,提供日本光明理化學(xué)工業(yè)株式會社北川式氣體檢測管介紹,日本光明理化學(xué)工業(yè)株式會社北川式氣體檢測管應(yīng)用,日本光明理化學(xué)工業(yè)株式會社北川式氣體檢測管價格,日本光明理化學(xué)工業(yè)株式會社北川式氣體檢測管說明書,日本光明理化學(xué)工業(yè)株式會社北川式氣體檢測管售后www.yd17.cn

          甲基溴氣體檢測管157SB METHYL BROMIDE 20-250ppm

          157SB
          1. PERFORMANCE
          1) Measuring range :10-500ppm
          Number of pump strokes 1(100ml)
          2) Sampling time :2 minutes/1 pump stroke
          3) Detectable limit :1 ppm
          4) Shelf life :3 years(Necessary to store in a 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 :White→Reddish orange
          2. RELATIVE STANDARD DEVIATION
          RSD-low:15% RSD-mid.:10% RSD-high:10%
          3. CHEMICAL REACTION
          By decomposing with an Oxidizer, Bromine is produced. Bromine reacts with o-Toluidine and red Orthoquinone
          is produced.
          CH3Br+I2O5+CrO3+H2SO4→Br2
          4. CALIBRATION OF THE TUBE
          GAS CHROMATOGRAPHY
          5. INTERFERENCE AND CROSS SENSITIVITY
          10
          30
          50
          100
          150
          200
          300
          400
          500
          ppm
          100ml
          GAS To pump
          (Brown) (White)
          PRETREAT TUBE DETECTOR TUBE
          Tube No.
          157SA METHYL BROMIDE
          Substance ppm Interference ppm Coexistence
          Chlorine 1 Similar stain is produced. 1 Higher readings are given.
          Bromine 1 〃1 〃
          Nitrogen dioxide 1 〃1 〃
          Dichloromethane 500 〃500 〃
          Chloroform 50 〃50 〃
          Ethylene dibromide 50 〃50 〃
          Trichloroethylene 50 〃50 〃
          Tetrachloroethylene 50 〃50 〃
          TEMPERATURE CORRECTION TABLE
          Scale True Concentration (ppm)
          Readings 0℃ 5℃ 10℃ 15℃ 20℃ 30℃ 40℃
          (ppm) (32°F) (41°F) (50°F) (59°F) (68°F) (86°F) (104°F)
          500 - - - 620 500 430 390
          400 - - 630 475 400 360 325
          300 - 675 430 345 300 280 260
          200 580 320 235 210 200 190 175
          150 260 185 160 150 150 140 130
          100 120 110 100 100 100 95 90
          50 50 50 50 50 50 50 50
          185
          1. PERFORMANCE
          1) Measuring range :5-80 ppm 2.5-40 ppm 0.9-7.3 ppm
          Number of pump strokes 1(100ml) 2(200ml) 4(400ml)
          2) Sampling time :1.5 minutes/1 pump stroke
          3) Detectable limit :1 ppm(200ml)
          4) Shelf life :3 years(Necessary to store in a 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 :White→Yellow
          2. RELATIVE STANDARD DEVIATION
          RSD-low:15% RSD-mid.:10% RSD-high:10%
          3. CHEMICAL REACTION
          By decomposing with an Oxidizer, Bromine is produced. Bromine reacts with o-Toluidine and yellow
          Orthoquinone is produced.
          CH3Br+I2O5+CrO3+H2SO4→Br2
          4. CALIBRATION OF THE TUBE
          GAS CHROMATOGRAPHY
          5. INTERFERENCE AND CROSS SENSITIVITY
          5
          10
          15
          20
          30
          40
          60
          80
          ppm
          100ml
          GAS To pump
          (Olive) (White)
          PRETREAT TUBE DETECTOR TUBE
          Tube No.
          157SB METHYL BROMIDE
          (NOTE)
          When the concentration is below 5 ppm, 2 pump strokes can be used to determine the lower concentration.
          Following formula is available for the actual concentration.
          Actual concentration=1/2×Temperature corrected value
          Substance Interference ppm Coexistence
          Halogen Similar stain is produced. Higher readings are given.
          Halogenated hydrocarbons 〃〃
          Hexane FIG.1 200 Lower readings are given.
          0
          50
          60
          70
          80
          30
          40
          Hexane〔ppm〕?
          FIG.1 Influence of Hexane

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