Gastec 153L 快速甲基异丁基酮检测管(CH3)2CHCH2COCH3(2.5~130ppm)

Indicator: 5 to 50ppm
Measuring Range: 
+ 2.5 to 50ppm, Number of Pump Strokes 1
+ 50 to 130ppm , Number of Pump Strokes 1/2
Sampling Time: 2 minute per pump stroke
Colour Change: Pale yellow → Pale blue
Reaction Principle: (CH3)2CHCH2COCH3+ Cr6+ + H3PO4 → Cr3+
Coefficient of Variation: 10% (for 2.5 to 10ppm), 5% (for 10 to 50ppm)
Nr. of tests: 10
Pump: GV-100S/110S

Detail

Catalog

Manual

Performance
Measuring Range 2.5 to 50ppm 50 to 130ppm
Number of Pump Strokes 1 1/2
Correction Factor 1 2.6
Sampling Time 2 minutes per pump stroke
Detecting Limit 1.5ppm (n=1)
Colour Change Pale yellow → Pale blue
Reaction Principle (CH3)2CHCH2COCH3+ Cr6+ + H3PO4 → Cr3+
Coefficient of Variation 10% (for 2.5 to 10ppm), 5% (for 10 to 50ppm)
Shelf Life 1 Year
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
Acrolein 5 ppm No Pale blue。ハ20 ppm。ヒ
Acetone   No No
Acetic acid   No No
Ethyl acetate 5ppm + Pale blue
Diethyl ether   + Pale blue
Toluene 5ppm + White
Halogenated hydrocarbons   No No
Hexane 15ppm + White。ハ15 ppm。ヒ
Benzene   No No
Methanol 5ppm + Pale blue。ハ10 ppm。ヒ
Methyl ethyl ketone 5ppm + White。ハ5 ppm。ヒ
Calibration gas generation Diffusion tube method
TLV-TWA TLV-STEL Explosive range
20 ppm (2014) 75 ppm (2014) 1.2 to 8%
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