Xylene |
NO.123L |
![]() |
Measuring Range |
|
||
Number of Pump Strokes |
|
||
Correction Factor |
|
||
Sampling Time | 1 minute per pump stroke | ||
Detecting Limit | 1 ppm (n=2) | ||
Colour Change | White → Brown | ||
Reaction Principle | C6H4(CH3)2 + I2O5 + H2SO4 → I2 | ||
Coefficient of Variation | 10% (for 2 to 30 ppm), 5% (for 30 to 100 ppm) | ||
Shelf Life | 3 Years | ||
Corrections for temperature & humidity | Unnecessary | ||
Store the tubes at cool and dark place. |
Substance | Concentration | Interference | Change colour by itself to |
Acetylene , Ethylene , Hexane | No | No | |
Alcohols , Esters , Ketones | No | No | |
Aromatic hydrocarbons | + | Brown |
Calibration gas generation | Diffusion tube method |
TLV-TWA | TLV-STEL | Explosive range |
100 ppm | 150 ppm | 1.0 to 7.0% |