乙酸檢測管145 Propyl acetate 的詳細介紹
 乙酸檢測管145 Propyl acetate

Propyl acetate         No.145CH3CO2CH2CH2CH3(CH3CO2C3H7)
Performance
 
Measuring Range
20 to 500 ppm
Number of Pump Strokes
2
Correction Factor
1
Sampling Time
4 minutes per pumpstroke
Detecting Limit
4 ppm (n=2)
Color Change
Yellow → Blackishbrown → Pale blue after few minutes
Reaction Principle
CH3CO2CH2CH2CH3 + Cr6+ + H2SO4 → Cr3+
Coefficient ofVariation
15% (for 20 to 100ppm), 10% (for 100 to 500 ppm)
ShelfLife 2 Years
Correctionsfor
temperature & humidity Temperature correction is necessary
Store the tubes at cool and darkplace.