Draeger 6728781 Sulfuric Acid 1/a Detector Tubes (9 tests per box)

Application Range:

• Standard Measuring Range: 1 to 5 mg/m3 Discoloration compared to color comparison tube.
• Number of Strokes n: 100
• Time for Measurement: approx. 100 min
• Standard Deviation: ± 30 %
• Color Change: brown → pink violet

Ambient Operating Conditions:

• Temperature: 5 to 40 °C
• Absolute Humidity: < 15 mg H2O / L

Reaction Principle:

• H2SO4 + barium chloroanilate → chloranilic acid + Ba2 SO4

Cross Sensitivity:

• Sulfur trioxide in the gaseous form is not indicated, but in the presence of atmospheric humidity this forms sulfuric acid aerosols, which are indicated.
• Soluble sulfates and other aerosol forming acids are also indicated but with different sensitivities.
• It is impossible to measure sulfuric acid in the presence of these substances.

Additional Information:

• After performing the required 100 pump strokes the reagent ampoule must be broken and the liquid transferred completely onto the brown reagent layer.
• Wait one minute before drawing the liquid carefully through the brown layer with approx.
• 1/4 pump stroke into the indication chamber.
• The measurement must be evaluated immediately.