Indicator: 0.5 to 5 ppm
Measuring Range: 0.5 to 5 ppm, Number of Pump Strokes 1
Sampling Time: 3 minute per pump stroke
Colour Change: Pink → Pale Yellow
Reaction Principle: CH2:CHCH:CH2+ KMnO4 → Reaction Product
Coefficient of Variation: 10% (for 0.5 to 1 ppm), 5% (for 1 to 5 ppm)
Nr. of tests: 5
Pump: GV-100S/110S
Catalog
Manual
Performance
| Measuring Range |
0.5 to 5 ppm |
| Number of Pump Strokes |
1 |
| Correction Factor |
1 |
| Sampling Time |
3 minutes per pump stroke |
| Detecting Limit |
0.1 ppm (n=1) |
| Colour Change |
Pink → Pale Yellow |
| Reaction Principle |
CH2:CHCH:CH2+ KMnO4 → Reaction Product |
| Coefficient of Variation |
10% (for 0.5 to 1 ppm), 5% (for 1 to 5 ppm) |
| Shelf Life |
3 Years |
| Corrections for temperature & humidity |
Unnecessary |
| Store the tubes in the refrigerator to keep at 10ºC (50ºF) or below. |
Possible coexisting substances and their interferences
(NOTE)
| Substance |
Concentration |
Interference |
Change colour by itself to |
| Ammonia |
|
No |
No |
| CO & CO2 |
|
No |
No |
| H2S, HCN |
|
No |
No |
| Acetylene |
50 ppm |
+ |
White |
| Olefins |
|
+ |
Pale yellow |
| Calibration gas generation |
Permeation tube method |
| TLV-TWA |
TLV-STEL |
Explosive range |
| 2 ppm(2014) |
- |
2.0 to 12% |
