Gastec 137LL 快速氯仿检测管 CHCl3(0.3~4.5 ppm)

Indicator: 0.3 to 4.5 ppm
Measuring Range: 0.3 to 4.5 ppm, Number of Pump Strokes 4
Sampling Time: 2 minute per pump stroke
Colour Change: White → Pale purple
Reaction Principle: CHCl3 + I2O5 + H2S2O7 → Cl2
Coefficient of Variation: 10% (for 0.3 to 1.5 ppm), 5% (for 1.5 to 4.5 ppm)
Nr. of tests: 5
Pump: GV-100S/110S

Detail

Catalog

Manual

Performance
Measuring Range
0.3 to 4.5 ppm
Number of Pump Strokes
4
Correction Factor
1
Sampling Time 2 minutes per pump stroke
Detecting Limit 0.2 ppm (n=4)
Colour Change White → Pale purple
Reaction Principle CHCl3 + I2O5 + H2S2O7 → Cl2
Coefficient of Variation 10% (for 0.3 to 1.5 ppm), 5% (for 1.5 to 4.5 ppm)
Shelf Life 1 Year
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
Chlorine 6ppm + Pale purple
Bromine 4.5ppm No No
Iodine 4.5ppm No No
1,1,1-trichloroethane   + Pale purple
trichloroethylene   + Pale purple
Calibration gas generation Diffusion tube method
TLV-TWA TLV-STEL Explosive range
10 ppm - -

 

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