Gastec 182 吡啶检测管 Pyridine C5H5N(0.2~35ppm)

Indicator: 1 to 14 ppm
Measuring Range: 
+ 0.2 to 0.5 ppm, Number of Pump Strokes 2
+ 0.5 to 14 ppm, Number of Pump Strokes 1
+ 14 to 35 ppm, Number of Pump Strokes 1/2
Sampling Time: 30 seconds per pump stroke
Colour Change: Pink → Yellow
Reaction Principle: C5H5N + H2SO4 → C5H5N - H2SO4
Coefficient of Variation: 10% (for 0.5 to 4 ppm), 5% (for 4 to 14 ppm)
Nr. of tests: 10
Pump: GV-100S/110S

Detail

Catalog

Manual

Performance
Measuring Range
0.2 to 0.5 ppm (0.5) to 14 ppm 14 to 35 ppm
Number of Pump Strokes
2 1 1/2
Correction Factor
0.4 1 2.5
Sampling Time 30 seconds per pump stroke
Detecting Limit 0.1 ppm (n=2)
Colour Change Pink → Yellow
Reaction Principle C5H5N + H2SO4 → C5H5N - H2SO4
Coefficient of Variation 10% (for 0.5 to 4 ppm), 5% (for 4 to 14 ppm)
Shelf Life 3 Years
Corrections for temperature & humidity Temperature correction is necessary
Store the tubes at cool and dark place.
Possible coexisting substances and their interferences (NOTE)
Substance Concentration Interference Change colour by itself to
Aromatic amines   + Yellow
Aliphatic amines   + Yellow
Ammomia   + Yellow
Hydrazine   + Yellow
Other substance measurable with this detector tube
Substance Correction Factor No. of pump strokes Measuring Range
4-Methyl pyridine 0.75 1 0.38 to 10.5 ppm
Calibration gas generation Diffusion tube method
TLV-TWA TLV-STEL Explosive range
1 ppm(2014) - 1.8 to 12.4 %
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