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當(dāng)前位置:上海境宣實(shí)業(yè)有限公司>>日本光明北川式氣體檢測(cè)管>>氣體快速檢測(cè)管>> 183U甲酚C6H4(CH3)(OH)氣體檢測(cè)管183U CRESOL 0.5-25.0ppm
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產(chǎn)品型號(hào)183U
品 牌
廠商性質(zhì)代理商
所 在 地上海市
更新時(shí)間:2025-04-07 12:59:03瀏覽次數(shù):1462次
聯(lián)系我時(shí),請(qǐng)告知來(lái)自 化工儀器網(wǎng)苯氣體檢測(cè)管118SB BENZENE 5-300ppm
室內(nèi)空氣甲醛檢測(cè)管No.713 FORMALDEHYDE 0.01-0
氯乙烯CH2=CHCl氣體測(cè)毒管132SC VINYL CHLORID
氯乙烯CH2=CHCl氣體檢知管132SB VINYL CHLORID
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
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