产品分类
PRODUCT CENTER
联系我们
销售电话:时经理
18121126516
021-64835787
产品详情
简单介绍:
二甲苯气体检测管123L Xylene,Measuring Range 2 to100 ppm 100 to 200 ppm Number of Pump Strokes 2 1 Correction Factor 1 2 Sampling Time 1 minute per pump stroke Detecting Limit 1 ppm (n=2)
详情介绍:
二甲苯气体检测管123L Xylene
Xylene No.123L
C6H4(CH3)2
Performance |
Measuring Range | 2 to100ppm | 100 to 200 ppm |
|
Number of PumpStrokes | 2 | 1 |
|
CorrectionFactor | 1 | 2 |
|
Sampling Time | 1 minute per pumpstroke | ||
Detecting Limit | 1 ppm (n=2) | ||
Color Change | White → Brown | ||
Reaction Principle | C6H4(CH3)2 + I2O5 + H2SO4 → I2 | ||
Coefficient ofVariation | 10% (for 2 to 30ppm), 5% (for 30 to 100 ppm) | ||
ShelfLife | 3Years | ||
Correctionsfor temperature & humidity | Unnecessary | ||
Store the tubes at cool and darkplace. |
Possible coexisting substances and theirinterferences | (NOTE) |
Substance | Concentration | Interference | Change color byitself |
Acetylene , Ethylene, Hexane | No | No | |
Alcohols , Esters ,Ketones | No | No | |
Aromatichydrocarbons | + | Brown |
Othersubstance measurable with this detector tube |
Calibration gasgeneration | Diffusion tube method |
TLV-TWA | TLV-STEL | Explosive range |
100 ppm | 150 ppm | 1.0 to 7.0% |