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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丁烯醛C2H5OCH2CH2OH检测管190U ETHYL CELLOSOLVE 5-500ppm

丁烯醛C2H5OCH2CH2OH检测管190U ETHYL CELLOSOLVE 5-500ppm

简要描述:

丁烯醛C2H5OCH2CH2OH检测管190U ETHYL CELLOSOLVE 乙二醇乙醚,乙二醇单乙醚,乙二醇-乙醚检测管,丁烯醛C2H5OCH2CH2OH检测管190U ETHYL CELLOSOLVE 5-500ppm,气体检测管法的应用特点:气体检测管法实际上是将化学分析方法仪器化,化学分析的繁琐步骤已被生产检测管的工业手段所取代,所以它具有化学分析和仪器分析的双重优点。

更新时间:2017-07-26

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丁烯醛C2H5OCH2CH2OH检测管190U ETHYL CELLOSOLVE 5-500ppm

丁烯醛C2H5OCH2CH2OH检测管190U ETHYL CELLOSOLVE 5-500ppm

Tube No.190U
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 :0~40℃
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.
HOCH2CH2OCH3+Cr6++H2SO4→Cr3+
4. CALIBRATION OF THE TUBE
GAS CHROMATOGRAPHY
5. INTERFERENCE AND CROSS SENSITIVITY
5
20
50
100
150
200
300
400
500
ppm
300ml
GAS To pump
DEHUMIDIFIER
(White)
190U METHYL CELLOSOLVE
Substance Interference Coexistence
Alcohols Similar stain is produced. Higher readings are given.
Ethers 〃〃
Paraffin (morefi nth haynd Cro3c)arbons Whole reagent is changed to Brown. 〃
Aromatic hydrocarbons 〃〃
Esters 〃〃
Ketones 〃〃
Halogenated hydrocarbons FIG.1 〃〃
0
400
500
200
300
Trichloroethane〔ppm〕�
FIG.1 Influence of Trichloroethane
Methyl cellosolve indicating value 〔ppm〕
100 200 300 400 500 600
100
TEMPERATURE CORRECTION TABLE
Scale True Concentration (ppm)
Readings 10℃ 15℃ 20℃ 25℃ 30℃ 35℃
(ppm) (50°F) (59°F) (68°F) (77°F) (86°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
(NOTE)
This tube scale is calibrated based on Ethyl cellosolve and the same scale is available for Methyl cellosolve.

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