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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苯酚C6H5OH气体检测管183U PHENOL 0.5-25.0ppm

苯酚C6H5OH气体检测管183U PHENOL 0.5-25.0ppm

简要描述:

苯酚C6H5OH气体检测管183U PHENOL 0.5-25.0ppm,苯酚(C6H6O,PhOH),又名石炭酸、羟基苯,是Z简单的酚类有机物,一种弱酸。常温下为一种无色晶体。有毒。有腐蚀性,常温下微溶于水。人口服致死量报道不一,LD为2~15g,或MLD为140mg/kg,14g/kg。国外报道酚液污染皮肤面积为25%,10分钟死亡,血酚为0.74mmlo/L。低浓度酚能使蛋白变性,高浓度能使蛋白沉淀。对皮肤、粘膜有强烈的腐蚀作用,也可抑制中枢神经系统或损害肝、肾功。

更新时间:2017-07-17

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苯酚C6H5OH气体检测管183U PHENOL 0.5-25.0ppm

苯酚C6H5OH气体检测管183U PHENOL 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
􀀀􀀀
􀀀􀀀
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
Cresol indicating value 〔ppm〕
100 200
TEMPERATURE CORRECTION TABLE
Scale True Concentration (ppm)
Readings 10℃ 15℃ 20℃ 30℃ 40℃
(ppm) (50°F) (59°F) (68°F) (95°F) (104°F)
25.0 31.2 27.8 25.0 21.8 18.8
20.0 24.5 22.3 20.0 17.5 15.0
15.0 18.4 16.7 15.0 13.1 11.3
10.0 12.3 11.1 10.0 8.8 7.5
5.0 6.1 5.6 5.0 4.4 3.8
3.0 3.7 3.3 3.0 2.6 2.3
1.0 1.2 1.1 1.0 0.9 0.8
0.5 0.5 0.5 0.5 0.5 0.5

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