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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>139U甲基丙基酮CH3CO(CH2)2CH3氣體檢測管139U METHYL PROPYL KETONE

                      甲基丙基酮CH3CO(CH2)2CH3氣體檢測管139U METHYL PROPYL KETONE

                      簡要描述:

                      甲基丙基酮CH3CO(CH2)2CH3氣體檢測管139U METHYL PROPYL KETONE 20-1500ppm,別 名 2-戊酮,CAS號 107-87-9,健康危害:本品對粘膜具有刺激作用,高濃度可致麻醉。吸入后引起上呼吸刺激、頭痛、頭暈、惡心、嘔吐、嗜睡、昏迷。對眼及皮膚有刺激性。未見慢性中毒病例。長期接觸可致皮炎。

                      更新時間:2024-12-26

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                      甲基丙基酮CH3CO(CH2)2CH3氣體檢測管139U METHYL PROPYL KETONE

                      甲基丙基酮CH3CO(CH2)2CH3氣體檢測管139U METHYL PROPYL KETONE 20-1500ppm

                      Tube 39U
                      1. PERFORMANCE
                      1) Measuring range :20-1,500 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→Pale blue(The top of discoloured layer is Brown.)
                      2. RELATIVE STANDARD DEVIATION
                      RSD-low:10% RSD-mid.:10% RSD-high:10%
                      3. CHEMICAL REACTION
                      Chromium oxide is reduced.
                      CH3COC2H5+Cr6++H2SO4→Cr3+
                      4. CALIBRATION OF THE TUBE
                      GAS CHROMATOGRAPHY
                      5. INTERFERENCE AND CROSS SENSITIVITY
                      20
                      50
                      100
                      200
                      500
                      1000
                      1500
                      ppm
                      GAS To pump
                      DEHUMIDIFIER
                      (White)
                      139U METHYL ETHYL KETONE
                      Substance Interference Coexistence
                      Alcohols Similar or Brown stain is produced. Higher readings are given.
                      Esters 〃〃
                      Ketones 〃〃
                      Aromatic hydrocarbons 〃〃
                      Whole reagent is changed to Brown,
                      Halogenated hydrocarbons but if the top of Pale blue stain is clear,
                      FIG.2 the reading can be obtained.
                      Paraffin hydrocarbons FIG.1 〃
                      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)
                      1,500 2,050 1,750 1,500 1,280 1,100 940 820
                      1,000 1,430 1,200 1,000 850 720 620 530
                      500 750 620 500 430 360 320 280
                      200 300 250 200 170 140 120 110
                      100 160 120 100 90 70 60 50
                      50 80 60 50 40 30 30 20
                      20 30 30 20 20 10 10 10
                      0
                      1200
                      1400
                      800
                      400
                      600
                      1000
                      Hexane〔ppm〕?
                      FIG.1 Influence of Hexane
                      Methyl ethyl ketone
                      indicating value 〔ppm〕
                      100 200 300 400 500
                      200
                      0
                      1200
                      1400
                      800
                      400
                      600
                      1000
                      Trichloroethylene〔ppm〕?
                      FIG.2 Influence of Trichloroethylene

                      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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