Dräger Tube -Formic Acid 1/a
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Dräger Tubes For Short Term Measurements: Formic Acid 1/a
Dräger Safety offer a massive range of short-term gas detection tubes for the measurement of various gases. This particular set of tubes is for (Formic Acid 1/a).
The tubes come in a pack of 10 tubes and have a shelf life of 2 years.
| Part no | Dräger Tube | Substance | Measurement Range |
| 6722701 | Formic Acid 1/a | 1 to 15 ppm | Acetic Acid |
| 5 to 9 ppm | Acetic Anhydride | ||
| 1 to 15 ppm | Formic Acid | ||
| 1 to 15 ppm | Methacrylic Acid | ||
| 1 to 15 ppm | Propionic Acid |
Application Range:
| Standard Measuring Range: | 1 to 15 ppm |
| Number of Strokes n: | 20 |
| Time for Measurement: | approx. 30 min |
| Standard Deviation: | ± 10 to 15 % |
| Colour Change: | blue violet to yellow |
Ambient Operating Conditions:
| Temperature: | 10 to 50 °C |
| Absolute Humidity | < 30 mg H2O / L |
Reaction Principle:
HCOOH + pH indicator ~> yellow reaction product
Cross Sensitivity:
It is impossible to measure formic acid in the presence of other acids. Organic acids are indicated by the same color change, but partly with different sensitivity. Mineral acids, e.g. hydrochloric acid are indicated with different sensitivity and by red color..
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