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供应氨气气体检测管3LA 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3LA Ammonia NH3 的详细介绍
氨气气体检测管3LA Ammonia NH3 Ammonia No.3LANH3

Performance

Measuring Range
2.5to 5ppm
5 to 100 ppm
100 to 200ppm
Number of PumpStrokes
2
1
1/2
Correction Factor
1/2
1
2
Sampling Time
30 seconds per pumpstroke
Detecting Limit
0.5ppm (n=2)
Color Change
Purple →Yellow
Reaction Principle
3NH3 + H3PO4 → (NH4)3PO4
Coefficient ofVariation 10% (for5 to 20 ppm), 5% (for 20 to 100 ppm)
ShelfLife 3Years
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
Carbondioxide
1%
Minuserror(20%)
-
Hydrazine
-
Plus error
Produce yellowdiscoloration
Amines
1/15
Plus error
Discolors at 5ppm(Yellow)