产品品牌：日本gastec

产品型号：145

乙酸检测管145 Propyl acetate 的详细介绍

 乙酸检测管145 Propyl acetate

Propyl acetate         No.145

CH3CO2CH2CH2CH3(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.

Possible coexisting substances and theirinterferences

(NOTE)

 

Substance	Concentration	Interference	Change color by itself
Alcohols	-	Plus error	Produce blackishbrown then turns to pale blue
Ketones	-	Plus error	Produce blackishbrown then turns to pale blue
Esters	-	Plus error	Produce blackishbrown then turns to pale blue

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