检测认证人脉交流通讯录
- 氨气气体检测管3D NH3 Ammonia，Measuring Range 2.5 to 1000 ppm Sampling Hours 0.5 to10 hours Detecting Limit 0.5 ppm (10 hours)氨气气体检测管价格，氨气气体检测管3D NH3 Ammonia
氨气气体检测管3D NH3 Ammonia的详细介绍
氨气气体检测管3D NH3 Ammonia Ammonia No.3D
NH3
Performance
Measuring Range
2.5 to 1000ppm
Sampling Hours
0.5 to10 hours
Detecting Limit
0.5 ppm (10hours)
Color Change
Purple →Yellow
Reaction Principle
2NH3 + H2SO4 → (NH4)2SO4
Coefficient ofVariation 10%(for 25 to 500 ppm-hr)
ShelfLife 3 Year
Correctionsfor
temperature & humidity Temperature correction isnecessary
Store the tubes atcool and dark place.
Possible coexisting substances and theirinterferences (NOTE)
Substance
Interference
Change colour byitself to
Amines,Hydrazine
+
Yellow
Aromatic amines No
No
Othersubstance measurable with this detectortube
Substance
CorrectionFactor
SamplingTime
MeasuringRange
Dimethylamine
0.75
0.5 to 10hours
1.9 to 750 ppm
N,N-Dimethylethylamine
1.6
0.5 to 10 hours 4 to 1600 ppm
Hydrazine
0.65
0.5 to 10 hours
1.6 to 650 ppm
Triethylamine
2.1
0.5 to 10 hours
5.3 to 2100ppm
Calibration gasgeneration Diffusion tubemethod
TLV-TWA TLV-STEL Explosive range
25 ppm 35ppm 15 to28%
