Isobutyl alcohol

NO.116
iCH3j2CHCH2OHii-C4H4OHj
Performance
Measuring Range 10 to 150 ppm
Number of Pump Strokes 2
Correction Factor 1
Sampling Time 3 minutes per pump stroke
Detecting Limit 1 ppm (n=2)
Colour Change Yellow → Pale blue
Reaction Principle (CH3)2CHCH2OH +Cr6++ H3PO4 →Cr3+
Coefficient of Variation 15% (for 5 to 50 ppm), 10% (for 50 to 150 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
TLV-TWA TLV-STEL Explosive range
50 ppm - 1.7 to 10.6%


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