检测认证人脉交流通讯录
- 1,3 -丁二烯174D 1,3-Butadiene CH2:CHCH:CH2，Measuring Range 1.3 to 200 ppm Sampling Hours 1 to 8 hours Detecting Limit 1.3 ppm (8 hours)1,3-丁二烯价格，1,3 -丁二烯检测管174D 1,3-Butadiene
1,3 -丁二烯检测管174D 1,3-Butadiene的详细介绍
1,3 -丁二烯检测管174D 1,3-Butadiene 1,3-Butadiene No.174D
CH2:CHCH:CH2
Performance
Measuring Range
1.3 to 200 ppm
Sampling Hours
1 to 8 hours
Detecting Limit
1.3 ppm (8hours)
Color Change
Reddish purple → Palebrown
Reaction Principle
CH2:CHCH:CH2 + MnO4 仺 Pale brown product
Coefficient ofVariation 10%(for 10 to 200 ppmr)
ShelfLife 2 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
Unsaturatedhydrocarbons
+
Palebrown
Othersubstance measurable with this detectortube
Substance
CorrectionFactor
SamplingTime
MeasuringRange
Ethylene
Factor: 1.2
1 to 10
1.5 to240 ppm
Vinylchloride
Factor: 1.2
1 to 10 1.5 to240 ppm
Isoprene
Factor: 2.0
1 to 10
2.5 to 400 ppm
Trans-1,2-Dichloroethylene
Factor: 3.0
1 to 10
3.8 to 600ppm
Calibration gasgeneration Diffusion tubemethod
TLV-TWA TLV-STEL Explosive range
2 ppm - 2.0to 12%
