Amtyl acetate

Measuring Range 10 to 200 ppm
Number of Pump Strokes 2
Correction Factor 1
Sampling Time 4 minutes per pump stroke
Detecting Limit 2 ppm (n=2)
Colour Change Yellow → Pale blue
Reaction Principle CH3CO2(CH2)4CH3 + Cr6+ + H2SO4 → Cr3+
Coefficient of Variation 15% (for 10 to 50 ppm), 10% (for 50 to 200 ppm)
Shelf Life 2 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
Ketones   + Pale blue
Esters   + Pale blue
Calibration gas generation Diffusion tube method
TLV-TWA TLV-STEL Explosive range
100 ppm - 1.1 to 7.5%

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