Draeger Tube, Phosphine 0.01/A 0.01-1ppm, Box of 10
DRAEGER SAFETY INC.
/ Model #8101611
Details
Draeger Tube - Phosphine 0.01/a
Order No. 81 01 611
| Application Range | |
| Standard Measuring Range | 0.1 to 1.0 ppm / 0.01 to 0.3 ppm |
| Number of Strokes n: | 3 /10 |
| Time for Measurement: | approx. 2.5 minutes / approx. 8 minutes |
| Standard Deviation: | ± 10 to 15% |
| Color Change: | yellow to red |
| Ambient Operating Conditions | |
| Temperature: | 2 to 40° C ~ 35.6 to 104° F |
| Absolute Humidity: | < 20 mg H2O / L |
| Reaction Principle | |
| PH3 + HgCI2 → HCI + Hg-phosphide HCI + pH indicator → red reaction product |
|
| Cross Sensitivity | |
| Arsine is indicated with different sensitivity. Up to 6 ppm sulfur dioxide or 15 ppm hydrochloric acid does not interfere, but higher concentrations cause plus errors. More than 100 ppm ammonia leads to minus errors. 30 ppm hydrocyanic acid does not affect the 3 stroke test, but with the 10 stroke test minus errors of up to 50 % can occur. | |
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