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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>181S苯胺气体检测管 Aniline C6H5NH2 181S 1-30ppm

苯胺气体检测管 Aniline C6H5NH2 181S 1-30ppm

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苯胺气体检测管 Aniline C6H5NH2 181S 1-30ppm,气体检测管是用来检测某种气体在某一环境中所含浓度的简易检测装置,通过检测剂与被检测气体的反应而出现颜色变化,来表示所测环境中的气体浓度。在不用任何能源、电源的情况下,具有操作简单、使用范围广、检测准确、即时性强和经济的特点。www.yd17.cn

更新时间:2018-03-15

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苯胺气体检测管 Aniline C6H5NH2 181S 1-30ppm

苯胺气体检测管 Aniline C6H5NH2 181S 1-30ppm

Tube No.181S
1. PERFORMANCE
1) Measuring range :2-30 ppm 1-15 ppm
Number of pump strokes 1(100ml) 2(200ml)
2) Sampling time :0.5 minutes/1 pump stroke
3) Detectable limit :0.05 ppm(200mr)
4) Shelf life :2 years
5) Operating temperature :0~40℃
6) Reading :Direct reading from the scale calibrated by 1 pump stroke
7) Colour change :White→Yellow
2. RELATIVE STANDARD DEVIATION
RSD-low:15% RSD-mid.:10% RSD-high:10%
3. CHEMICAL REACTION
By reacting with p-Dimethylamino-benzaldehyde, Azomethine is produced.
4. CALIBRATION OF THE TUBE
COLOURIMETRY METHOD
5. INTERFERENCE AND CROSS SENSITIVITY
2
5
10
15
20
25
30
ppm
100ml
GAS To pump
DEHUMIDIFIER
(White)
181S ANILINE
Substance Interference ppm Coexistence
Toluidine Similar stain is produced. Aniline conc.×1/3 Higher readings are given.
Ammonia FIG.1 Tafhfeec atecdc.uracy of readings is not Tofh Ae nsialinmee conc. 〃
Paraffin amines 〃〃
Aromatic amines 〃〃
(NOTE)
In case of 2 strokes, following formula is available for the actual concentration.
Actual concentration=1/2×Reading value.
0
50
30
20
40
10
Ammonia〔ppm〕�
FIG.1 Influence of Ammonia
Aniline indicating value 〔ppm〕
10 20 30 40 50 60
Coexistence
Interference
NH2+CHO N(CH3)2 N=CH N(CH3)2+H2O
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