Gastec 60 快速苯酚测量探测管C6H5OH(0.4~187ppm)

Indicator: 
Measuring Range: 
+ 0.4~1ppm, Number of Pump Strokes 4
+ 1~25ppm, Number of Pump Strokes 2
+ 25~62.5ppm, Number of Pump Strokes 1
+ 62.5ppm~187ppm, Number of Pump Strokes 1/2
Sampling Time: 1.5 minute per pump stroke
Colour Change: Pale yellow → Gray
Reaction Principle: C6H5OH + Ce(NO3)6^2- → C6H5OCe(NO3)5N
Coefficient of Variation: 15% (for 1 to 5 ppm), 10% (for 5 to 25 ppm)
Nr. of tests: 10
Pump: GV-100S/110S

Detail

Catalog

Manual

Performance
Measuring Range
0.4 to
1 ppm
1 to
25 ppm
25 to
62.5 ppm
62.5 to
187 ppm
Number of Pump Strokes
4 2 1 1/2
Correction Factor
0.4 1 2.5 7.5
Sampling Time 1.5 minutes per pump stroke
Detecting Limit 0.1 ppm (n = 4)
Colour Change Pale yellow → Gray
Reaction Principle C6H5OH + Ce(NO3)62- → C6H5OCe(NO3)5N
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 Unclear demarcation White
Amines 2000 ppm Unclear demarcation White
Cresol   + Gray
Other substance measurable with this detector tube
Substance Correction Factor No. of pump strokes Measuring Range
Naphthalene by Scale 2 0.5 to 14 ppm
Calibration gas generation Diffusion tube method
TLV-TWA TLV-STEL Explosive range
5 ppm - 3 to 10 %
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