Gastec 113L 快速异丙醇检测管C3H7OH(20~800ppm)

Indicator: 100~800ppm
Measuring Range: 
+ 20 to 50 ppm, Number of Pump Strokes 2
+ 50 to 800 ppm, Number of Pump Strokes 1
Sampling Time: 2 minute per pump stroke
Colour Change: Pink → Pale blue
Reaction Principle: CH3CH(OH)CH3 + Cr6++ H2SO4 →Cr3+
Coefficient of Variation: 10% (for 50 to 200 ppm), 5% (for 200 to 800 ppm)
Nr. of tests: 10
Pump: GV-100S/110S

Detail

Catalog

Manual

Performance
Measuring Range
20 to 50 ppm 50 to 800 ppm
Number of Pump Strokes
2 1
Correction Factor
0.4 1
Sampling Time 2 minutes per pump stroke
Detecting Limit 15 ppm (n=2)
Colour Change Pink → Pale blue
Reaction Principle CH3CH(OH)CH3 + Cr6++ H2SO4 →Cr3+
Coefficient of Variation 10% (for 50 to 200 ppm), 5% (for 200 to 800 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
Alcohols   + Pale blue
Acetone 1200 ppm No No discolouration up to 1200 ppm
Ethyl Acetate 450 ppm No No discolouration up to 450 ppm
Toluene 230 ppm No No discolouration up to 230 ppm
Benzene 75 ppm No No discolouration
Other substance measurable with this detector tube
Substance Correction Factor No. of pump strokes Measuring Range
Propyl alcohol by scale 1 130 to 560 ppm
Vinyl trimethoxysilane by scale 2 6.5 to 25.0 ppm
Divinyl methoxysilane by scale 2 6.5 to 25.0 ppm
Ethylene glycol MME by scale 2 75 to 760 ppm
Ethylene glycol MEE by scale 2 110 to 1000 ppm
Ethylene glycol MBE by scale 2 200 to 1000 ppm
Ethylene glycol MMEAc by scale 2 300 to 1300 ppm
Calibration gas generation Diffusion tube method
TLV-TWA TLV-STEL Explosive range
200 ppm (2014) 400 ppm (2014) 2 to 12.7%

 

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