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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>190U醋酸甲氧乙酯气体检测管Methyl cellosolve acetate 3-120ppm

醋酸甲氧乙酯气体检测管Methyl cellosolve acetate 3-120ppm

简要描述:

Methyl cellosolve acetate CH3CO2CH2CH2OCH3 190U ETHYL CELLOSOLVE (+) 3-120ppm 乙二醇-甲醚乙酸检测管,醋酸甲氧乙酯,乙酸甲赛璐苏;乙酸2-甲氧乙酯,检测管在世界上一些发达的工业国家使用的相当普遍,从品种和数量上规模都很大,并且有许多有影响的专业生产厂。在环境保护组织和劳动安全行业已经制订了检测管使用的相应法律法规措施,气体检测管成为一种必不可少的环境监测的安全工具。www.yd666.com,有毒气体应急监测箱

更新时间:2017-07-24

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醋酸甲氧乙酯气体检测管Methyl cellosolve acetate 3-120ppm

醋酸甲氧乙酯气体检测管Methyl cellosolve acetate 3-120ppm

Tube No.190U
0
30
40
50
20
10
Ethanol〔ppm〕�
FIG.1 Influence of Ethanol
Ethyl cellosolve indicating value 〔ppm〕
100 200 300 400 500
(300ml)� (100ml)�
0
300
400
500
200
100
1,1,1-Trichloroethane〔ppm〕�
FIG.2 Influence of 1,1,1-Trichloroethane
Ethyl cellosolve indicating value 〔ppm〕
100 200 300 400 500 600
(300mR)�
1. PERFORMANCE
1) Measuring range :5-500 ppm
Number of pump strokes 3(300ml)
2) Sampling time :4.5 minutes/3 pump strokes
3) Detectable limit :2 ppm
4) Shelf life :2 years
5) Operating temperature :10~35℃
6) Temperature compensation :Necessary(See "TEMPERATURE CORRECTION TABLE")
7) Reading :Direct reading from the scale calibrated by 3 pump strokes
8) Colour change :Yellow→Pale blue
2. RELATIVE STANDARD DEVIATION
RSD-low:10% RSD-mid.:10% RSD-high:10%
3. CHEMICAL REACTION
Chromium oxide is reduced.
C2H5OCH2CH2OH+Cr6++H2SO4→Cr3+
4. CALIBRATION OF THE TUBE
GAS CHROMATOGRAPHY
5. INTERFERENCE AND CROSS SENSITIVITY
GAS To pump
500
400
500
200
150
100
50
20
5
300ml
ppm
(White)
DEHUMIDIFIER
􀀀􀀀
190U ETHYL CELLOSOLVE
Substance Interference Coexistence
Alcohols FIG.1 Similar stain is produced. Higher readings are given.
Ethers 〃〃
(Pmaroarfefi nth haynd Cro3c)arbons Whole reagent is changed to Brown. 〃
Aromatic hydrocarbons 〃〃
Esters 〃〃
Ketones 〃〃
Halogenated hydrocarbons FIG.2 〃〃
TEMPERATURE CORRECTION TABLE
Scale True Concentration (ppm)
Readings 10℃ 15℃ 20℃ 25℃ 30℃ 35℃
(ppm) (50°F) (59°F) (68°F) (77°F) (80°F) (95°F)
500 800 620 500 410 335 265
400 620 490 400 325 260 200
300 450 365 300 245 195 145
200 290 245 200 160 125 95
150 215 185 150 120 90 70
100 145 125 100 80 60 45
50 75 65 50 40 30 25
20 30 25 20 15 12 10
5 10 7 5 4 3 2

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