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[供應]醋酸丁酯氣體檢測管142L Butyl acetate
- 產品產地:日本
- 產品品牌:日本gastec
- 包裝規(guī)格:142L
- 產品數(shù)量:1111
- 計量單位:盒
- 產品單價:1
- 更新日期:2014-06-13 15:44:33
- 有效期至:2015-06-13
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醋酸丁酯氣體檢測管142L Butyl acetate
詳細信息
酸丁酯氣體檢測管142L Butyl acetate    的詳細介紹   
 
 
醋酸丁酯氣體檢測管142L Butyl acetate
Butyl acetate                            No.142L
 
CH3CO2(CH2)3CH3(CH3CO2C4H9)
 
 
 
Performance 
MeasuringRange
10 to 300 ppm
Number of PumpStrokes
2
CorrectionFactor
1
SamplingTime
4 minutes per pumpstroke
DetectingLimit
2 ppm (n=2)
ColorChange
Yellow → Dark brown →Pale blue after few minutes
ReactionPrinciple
CH3CO2(CH2)3CH3  + Cr6+  + H2SO4  → Cr3+
Coefficient ofVariation15% (for 10 to 100ppm), 10% (for 100 to 300 ppm)
ShelfLife2 Years
Correctionsfor
temperature & humidityTemperature  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
Dark brown (few minuteslater) 
  Pale blue
Ketones
-
Plus error
Esters
-
Plus error
Aromatic HCs
-
Pluserror
同類型其他產品
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