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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正丁醇 1-Butanol 1-丁醇气体检测管 CH3(CH2)3OH 5-100ppm

正丁醇 1-Butanol 1-丁醇气体检测管 CH3(CH2)3OH 5-100ppm

简要描述:

190U 1-BUTANOL (+) 正丁醇 1-Butanol 1-丁醇气体检测管 CH3(CH2)3OH 5-100ppm作为一种气体分析方法来讲,用在试验室条件下研制的检测管检测定气体浓度,实际上与其它方法相比结果是相似的,因为这些方法都是符合分析化学理论要求的,见附表,但是将气体检测管作为商品,其质量技术指标关健是其准确度如何。检测不同气体的检测管其准确度也不相同,如硫化氢检测管的相对标准误差为10~5%、二氧化硫、一氧化碳、氨检测管为15~10%、氯化氢检测管为20~15%

更新时间:2017-12-02

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正丁醇 1-Butanol 1-丁醇气体检测管 CH3(CH2)3OH  5-100ppm

190U 1-BUTANOL (+) 正丁醇 1-Butanol 1-丁醇气体检测管 CH3(CH2)3OH  5-100ppm

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)�
(300mR)�
5
20
50
100
200
300
400
500
5
10
20
40
60
80
100
190U C www.r-biopharm.com.cn

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