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            當(dāng)前位置:上海境宣實(shí)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>> 111U甲基異硫氰酸酯CH3NCS Methyl isothiocyanate 10-200ppm

            甲基異硫氰酸酯CH3NCS Methyl isothiocyanate 10-200ppm

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            產(chǎn)品型號111U

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            所  在  地上海市

            更新時(shí)間:2025-04-21 18:18:27瀏覽次數(shù):1611次

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            111U ETHYL ACETATE乙酸乙酯,甲基異硫氰酸酯CH3NCS Methyl isothiocyanate 10-200ppm,生化監(jiān)測箱,毒物現(xiàn)場勘察箱,突發(fā)化學(xué)事故應(yīng)急檢測箱,核化應(yīng)急檢測箱,突發(fā)事件應(yīng)急檢測箱,易制毒化學(xué)品檢驗(yàn)箱,化學(xué)事故應(yīng)急檢測箱主要適用于突發(fā)性化學(xué)事故(如火災(zāi)、爆炸、毒氣泄漏等)現(xiàn)場的有毒有害氣體快速檢測,保證事故救援工作的順利進(jìn)行,為事故分析提供現(xiàn)場數(shù)據(jù)。

            甲基異硫氰酸酯CH3NCS Methyl isothiocyanate 10-200ppm

            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〕

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