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主页 有毒有害气体快速检测管（用泵） Gastec 61 快速甲酚测量探测管C6H4(CH3)OH（0.4~62.5 ppm）

Gastec 61 快速甲酚测量探测管C6H4(CH3)OH（0.4~62.5 ppm）

Indicator: 1 to 25 ppm
Measuring Range: 
+ 0.4 to 1 ppm, Number of Pump Strokes 4
+ 1 to 25 ppm, Number of Pump Strokes 2
+ 25 to 62.5 ppm, Number of Pump Strokes 1
Sampling Time: 1.5 minute per pump stroke
Colour Change: Pale yellow → Gray
Reaction Principle: C6H5(CH3)OH + Ce(NO3)6^2- → C6H5O(CH3)Ce(NO3)5^2-
Coefficient of Variation: 15% (for 1 to 5 ppm), 10% (for 5 to 25 ppm)
Nr. of tests: 10
Pump: GV-100S/110S

Details

Catalog

Manual

Performance
Measuring Range
0.4 to 1 ppm 1 to 25 ppm 25 to 62.5 ppm
Number of Pump Strokes
4 2 1
Correction Factor
0.4 1 2.5
Sampling Time 1.5 minutes per pump stroke
Detecting Limit 0.1 ppm (n = 4)
Colour Change Pale yellow → Gray
Reaction Principle C6H5(CH3)OH + Ce(NO3)62- → C6H5O(CH3)Ce(NO3)52-
Coefficient of Variation 15% (for 1 to 5 ppm), 10% (for 5 to 25 ppm)
Shelf Life 2 Years
Corrections for temperature & humidity Temperature correction is necessary
Store the tubes in the refrigerator to keep at 10ºC (50ºF) or below.
Possible coexisting substances and their interferences (NOTE)
Substance Concentration Interference Change colour by itself to
Ammonia 2000 ppm + White
Amines 2000 ppm + White
Phenol   + Gray
Other substance measurable with this detector tube
Substance Correction Factor No. of pump strokes Measuring Range
m-Cresol 1.0 2 1 to 25 ppm
p-Cresol 1.0 2 1 to 25 ppm
Calibration gas generation Diffusion tube method
TLV-TWA TLV-STEL Explosive range
20mg/m3(IFV) - -

 

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