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首页>产品中心>日本光明北川式气体检测管>气体快速检测管>111U甲基异硫氰酸酯CH3NCS Methyl isothiocyanate 10-200ppm

甲基异硫氰酸酯CH3NCS Methyl isothiocyanate 10-200ppm

简要描述:

111U ETHYL ACETATE乙酸乙酯,甲基异硫氰酸酯CH3NCS Methyl isothiocyanate 10-200ppm,生化监测箱,毒物现场勘察箱,突发化学事故应急检测箱,核化应急检测箱,突发事件应急检测箱,易制毒化学品检验箱,化学事故应急检测箱主要适用于突发性化学事故(如火灾、爆炸、毒气泄漏等)现场的有毒有害气体快速检测,保证事故救援工作的顺利进行,为事故分析提供现场数据。

更新时间:2017-07-10

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甲基异硫氰酸酯CH3NCS Methyl isothiocyanate 10-200ppm

甲基异硫氰酸酯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
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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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