氨氣氣體檢測管3M Ammonia NH3 的詳細介紹
氨氣氣體檢測管3M Ammonia NH3 Ammonia                     No.3MNH3

Performance
 
MeasuringRange
10 to 50 ppm
50 to 500 ppm
500 to 1000ppm
Number of Pump Strokes
2 to 5
1
1/2
CorrectionFactor
1/2 to 1/5
1
2
SamplingTime
45 seconds per pumpstroke
DetectingLimit
2 ppm (n=5)
ColorChange
Purple →Yellow
ReactionPrinciple
3NH3 + H3PO4 → (NH4)3PO4
Coefficient ofVariation 5% (for50 to 500 ppm)
ShelfLife 3Years
Correctionsfor
temperature & humidity Unnecessary
Store the tubes in dark and coolplace.

Possible coexisting substances and theirinterferences (NOTE)


Substance
Concentration
Interference
Change color by itself
Diamines
1/8
Plus error
Produce yellowstain
Monoamines
1/15
Plus error
Produce yellowstain
Carbondioxide
1%
Minus error
Nodiscoloration