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高精空气质量检测，让环境更美好
专业代理气体检测仪器,水质检测仪器，声级计

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NO.145 乙酸检测管的详细介绍：

NO.145 乙酸检测管.jpg

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.