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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四氢噻吩C4H8S气体检测管190U Tetrahydrothiophene 4-100ppm

四氢噻吩C4H8S气体检测管190U Tetrahydrothiophene 4-100ppm

简要描述:

四氢噻吩C4H8S气体检测管190U Tetrahydrothiophene 4-100ppm,四氢噻吩主要用作城市煤气、天然气等气体燃料的赋臭剂即警告剂。也可用作医药、农药和光化学品生产的原料。健康危害: 本品具有麻醉作用。小鼠吸入中毒时,出现运动性兴奋、共济失调、麻醉,Z后死亡。慢性中毒实验中,小鼠表现为行为异常、体重增长停顿及肝功能改变。对皮肤有弱刺激性。环境危害: 对水体可造成污染

更新时间:2017-07-14

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四氢噻吩C4H8S气体检测管190U Tetrahydrothiophene 4-100ppm

四氢噻吩C4H8S气体检测管190U Tetrahydrothiophene 4-100ppm

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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