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甲酚C6H4(CH3)(OH)氣體檢測(cè)管183U CRESOL 0.5-25.0ppm，便攜式臭氧檢測(cè)系統(tǒng)：在不用任何能源、電源的情況下，1分鐘內(nèi)即可快速檢測(cè)出環(huán)境中的臭氧濃度，具有操作簡(jiǎn)單、攜帶方便等特點(diǎn)。包括：臭氧氣體檢測(cè)管（檢測(cè)范圍：4-400ppm）、手動(dòng)采樣器、5米延長(zhǎng)采樣管、便攜式儀器箱
更新時(shí)間：2025-08-20
在線留言
甲酚C6H4（CH3）（OH）氣體檢測(cè)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
上一篇：132SC氯乙烯檢知管價(jià)格132SC VINYL CHLORIDE 1-50ppm
下一篇：190U丁烯醛CH3CH=CHCHO氣體檢測(cè)管190U ETHYL CELLOSOLVE 2-40ppm
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