Draeger 6728531 Water Vapor 5/a-P Detector Tubes (10 tests per box)

Application Range:

• Use in Aerotest 5000, SimultanTest CO2P
• Standard Measuring Range: 5 to 200 mg/m3
• Test Volume: 50 L
• Flow Rate: 2 L / min
• Time for Measurement: approx. 25 min
• Standard Deviation: ± 15 to 20 %
• Color Change: yellow → reddish-brown

Ambient Operating Conditions:

• Temperature: 0 to 40 °C
• Pressure: The tube may only be used for depressurized compressed air

Reaction Principle:

• H2O + SeO2 + H2SO4 → reddish-brown reaction product

Cross Sensitivity:

• Alcohols and unsaturated hydrocarbons of high concentrations may cause a diffused discoloration of the indicating layer.

Extension of the measuring range:

• The following evaluation applies for other volumes: reading:
• 5 10 30 50 70 100 150 200 mg H2O/m3
  25 L vol.: 10 20 70 110 160 220 340 450 mg H2O/m3
  100 L vol.: 2 4 12 20 28 40 60 80 mg H2O/m3
• i.e. given a test volume of 25 L the scale reading of 50 mg H2O/m3 corresponds to a measured value of 110 mg H2O/m3
• Relative Standard Deviation:
  • ± 25 to 30 % ( 25 L)
  • ± 20 to 25 % (100 L)

Important Note: These tubes are only to be used with Draeger’s Aerotest Kits.