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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乙烷纤维素溶剂醋酸盐C2H5OC2H4OCOCH3 190U 5-150ppm

乙烷纤维素溶剂醋酸盐C2H5OC2H4OCOCH3 190U 5-150ppm

简要描述:

乙烷纤维素溶剂醋酸盐C2H5OC2H4OCOCH3 190U ETHYL CELLOSOLVE ACETATE (+) 5-150ppm,操作简便:用检测管测定气体浓度时,不需要同化学分析那样加用多种化学试剂和使用各种玻璃仪器,一般也无需进行计算。也无需仪器分析那样做好复杂的测前准备。工作步骤仅有采样和结果显示两步,而这两步又几乎是同时进行的,这就为专业分析人员提供了极大方便,即使对没有分析基础知识的人,如现场工程技术或操作人员,只要参照使用说明或对其稍加指导就可以应用。

更新时间:2017-07-26

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乙烷纤维素溶剂醋酸盐C2H5OC2H4OCOCH3 190U 5-150ppm

乙烷纤维素溶剂醋酸盐C2H5OC2H4OCOCH3 190U 5-150ppm

1. PERFORMANCE
1) Measuring range :5-100 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 :Graduations printed on the tube are calibrated by Ethyl cellosolve at 3 pump strokes
and 1-Butanol concentration is determined by using a conversion chart.
8) Colour change :Yellow→Pale blue
2. RELATIVE STANDARD DEVIATION
RSD-low:10% RSD-mid.:10% RSD-high:5%
3. CHEMICAL REACTION
Chromium oxide is reduced.
CH3CH2CH2CH2OH+Cr6++H2SO4→Cr3+
4. CALIBRATION OF THE TUBE
GAS CHROMATOGRAPHY
5. INTERFERENCE AND CROSS SENSITIVITY
50
20
100
150
200
300
400
500
5
300ml
ppm
GAS To pump
DEHUMIDIFIER
(White)
Tube No.
1-BUTANOL
Substance ppm Interference Coexistence
Alcohols FIG.1 Similar stain is produced. Higher readings are given.
Toluene 200 Whole reagent is changed to Pale blue. 〃
Hexane 1,000 The accuracy of readings is not affected. The accuracy of readings is not affected.
Trichloroethylene 1,000 〃〃
Ethyl acetate FIG.2 1,000 〃〃
0
100
50
Ethanol〔ppm〕�
FIG.1 Influence of Ethanol
1-Butanol indicating value 〔ppm〕
50 100
Coexistence
Interference
0
100
50
Ethyl acetate〔ppm〕�
FIG.2 Influence of Ethyl acetate
1-Butanol indicating value 〔ppm〕
500 1000
TEMPERATURE CORRECTION TABLE
Scale True Concentration (ppm)
Readings 0℃ 10℃ 20℃ 30℃ 40℃
(ppm) (32°F) (50°F) (68°F) (86°F) (104°F)
100 - - 100 85 77
80 - - 80 70 63
60 - 80 60 53 50
40 75 50 40 35 33
20 30 23 20 18 16
10 13 11 10 9 8
5 5 5 5 5 5
1-Butanol(ppm)�
No.190U Tube reading(ppm)

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