电话：010-84459554,84459554
邮箱：1202723@QQ.COM
QQ：1202723
手机微信号：18901191778
地址：北京市朝阳区清河营东路2号院2号楼1111室
Toluene检测管
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% |