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供应氨气气体检测管3M Ammonia NH3

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更新时间2014/9/29 9:11:19

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规格参数

产品介绍

氨气气体检测管3M Ammonia NH3 的详细介绍
氨气气体检测管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