Indicator: 0.25 to 6.0 mg/m3
Measuring Range:
+ 0.05 to 0.25 mg/m3, Number of Pump Strokes 5
+ 0.25 to 6.0 mg/m3, Number of Pump Strokes 1
+ 6.0 to 13.2 mg/m3, Number of Pump Strokes 1/2
Sampling Time: 1.5 minute per pump stroke
Colour Change: White → Pale Orange
Reaction Principle: Hg + Cu2I2 → Cu2(HgI4) + 2Cu
Coefficient of Variation: 10% (for 0.25 to 2 mg/m3), 5% (for 2 to 6 mg/m3)
Nr. of tests: 10
Pump: GV-100S/110S
Detail
Catalog
Manual
Performance
| Measuring Range |
| 0.05 to 0.25 mg/m3 |
0.25 to 6.0 mg/m3 |
6.0 to 13.2 mg/m3 |
|
| Number of Pump Strokes |
|
| Correction Factor |
|
| Sampling Time |
1.5 minutes per pump stroke |
| Detecting Limit |
0.01 mg/m3 (n=5) |
| Colour Change |
White → Pale Orange |
| Reaction Principle |
Hg + Cu2I2 → Cu2(HgI4) + 2Cu |
| Coefficient of Variation |
10% (for 0.25 to 2 mg/m3), 5% (for 2 to 6 mg/m3) |
| Shelf Life |
3 Years |
| Corrections for temperature & humidity |
Unnecessary |
| Store the tubes at cool and dark place. |
Possible coexisting substances and their interferences
(NOTE)
| Substance |
Concentration |
Interference |
Change colour by itself to |
| Chlorine |
|
+ |
Pale orange |
| Nitrogen dioxide |
|
+ |
Pale orange |
| Hydrogen sulphide |
|
+ |
Pale orange (whole layer) |
| Calibration gas generation |
Vaper pressure method |
| TLV-TWA |
TLV-STEL |
Explosive range |
| 0.025mg/m3 |
- |
- |
