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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>183U甲酚C6H4(CH3)(OH)气体检测管183U CRESOL 0.5-25.0ppm

甲酚C6H4(CH3)(OH)气体检测管183U CRESOL 0.5-25.0ppm

简要描述:

甲酚C6H4(CH3)(OH)气体检测管183U CRESOL 0.5-25.0ppm,便携式臭氧检测系统:在不用任何能源、电源的情况下,1分钟内即可快速检测出环境中的臭氧浓度,具有操作简单、携带方便等特点。包括:臭氧气体检测管(检测范围:4-400ppm)、手动采样器、5米延长采样管、便携式仪器箱

更新时间:2017-08-02

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甲酚C6H4(CH3)(OH)气体检测管183U CRESOL 0.5-25.0ppm

甲酚C6H4(CH3)(OH)气体检测管183U CRESOL 0.5-25.0ppm

1. PERFORMANCE
1) Measuring range :0.5-25.0 ppm
Number of pump strokes 2(200ml)
2) Sampling time :3 minutes/2 pump strokes
3) Detectable limit :0.3 ppm
4) Shelf life :2 years
5) Operating temperature :10~40℃
6) Temperature compensation :Necessary(See "TEMPERATURE CORRECTION TABLE")
7) Reading :Direct reading from the scale calibrated by 2 pump strokes
8) Colour change :Pale yellow→Pale brown
2. RELATIVE STANDARD DEVIATION
RSD-low:10% RSD-mid.:5% RSD-high:5%
3. CHEMICAL REACTION
Cresol is oxidized and the polymer is produced.
CH3C6H4OH+Ce4+→CH3C6H4O→(CH3C6H4O)n
4. CALIBRATION OF THE TUBE
ABSORPTIOMETRIC METHOD
5. INTERFERENCE AND CROSS SENSITIVITY
GAS To pump
25.0
20.0
15.0
10.0
5.0
3.0
1.0
0.5
ppm

INTERFERENCE AND CROSS SENSITIVITY
GAS To pump
25.0
20.0
15.0
10.0
5.0
3.0
1.0
0.5
ppm
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Tube No.
183U CRESOL
88
Substance Interference ppm Coexistence
Phenols FIG.1 Similar stain is produced. 2.5 Higher readings are given.
Ammonia White stain is produced. 200 Discolouration of gas inlet side is
FIG.2 faded and higher reading are given.
Aliphatic amines 〃50 〃
Two layers discolouration of Pale
Aromatic amines Blue stain is produced. 50 brown and blue are produced and
higher reading are given.
(NOTE)
This tube scale is calibrated based on Phenol and the same scale is available for Cresol.
0
5
15
10
Phenol〔ppm〕�
FIG.1 Influence of Phenol
Cresol indicating value 〔ppm〕
5 0
5
15
10
Ammonia〔ppm〕�
FIG.2 Influence of Ammonia

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