检测认证人脉交流通讯录
- 甲苯器检测管122DL C6H5CH3 Toluene，Measuring Range 2 to 500 ppm Sampling Hours 1 to10 hours Detecting Limit 2 ppm (10 hours)甲苯器检测管价格，甲苯器检测管122DL C6H5CH3 Toluene
甲苯器检测管122DL C6H5CH3 Toluene的详细介绍
甲苯器检测管122DL C6H5CH3 Toluene
Toluene No.122DL
C6H5CH3
Performance
Measuring Range
2 to 500 ppm
Sampling Hours
1 to10 hours
Detecting Limit
2 ppm (10hours)
Color Change
White → Brown
Reaction Principle
Toluene react withformaldehyde to form condensation polymer, which is brown incolour.
Coefficient ofVariation 10%(for 20 to 500 ppm-hr)
ShelfLife 2 Year
Correctionsfor
temperature & humidity Temperature correction isnecessary
Store the tubes atcool and dark place.
Possible coexisting substances and theirinterferences (NOTE)
Substance
Concentration Interference
Change colour byitself to
Aromatichydrocarbons
+
Brown
hols, Ketones, Esters 30ppm
No
No
Othersubstance measurable with this detectortube
Substance
CorrectionFactor
SamplingTime
MeasuringRange
Xylene
Factor: 1.7
1 to 10
3.4 to850 ppm
Ethyl benzene
Factor: 1.4
1 to 10 2.8 to700 ppm
Cumene
Factor: 1.7
1 to 10
3.4 to 850 ppm
Benzene
Factor: 1.2
1 to 10
2.4 to 600 ppm
Stylene
Factor: 13
1 to 10
26 to 6500 ppm
Calibration gasgeneration Diffusion tubemethod
TLV-TWA TLV-STEL Explosive range
20 ppm - 1.4to 6.7%
