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Draeger Tube, Phosphine 0.01/A 0.01-1ppm, Box of 10

Draeger Tube, Phosphine 0.01/A 0.01-1ppm, Box of 10

$123.00
Availability: May direct ship from manufacturer.
Product Code: 8101611

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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