| Measuring Range |
10 to 100 mg/m3 |
| Number of Pump Strokes |
2 |
| Correction Factor |
1 |
| Sampling Time |
2 minutes per pump stroke |
| Detecting Limit |
2 mg/m3 (n=2) |
| Colour Change |
Yellow → Reddish brown |
| Reaction Principle |
HOCO2CH2OH + Oxidiser → 2HCHO
3HCHO + (NH2OH)3H3PO4 → H3PO4
H3PO4 + Base → Phosphate |
| Coefficient of Variation |
15% (for 10 to 50 mg/m3),10% (for 50 to 150 mg/m3) |
| Shelf Life |
3 Years |
| Corrections for temperature & humidity |
Temperature correction is necessary |
| Store the tubes in the refrigerator to keep at 10ºC (50ºF) or below. |
