Tube Phosphine 1/a (10) | Draeger

Product Description:

• Type: Gas Detection Tube

• Target Gas: Phosphine (PH₃)

• Detection Range: Typically, this specific tube measures phosphine concentrations from 0.1 ppm to 10 ppm (parts per million), though the exact range may vary based on the tube type and model.

• Measurement Principle: The phosphine detection tube works based on a colorimetric reaction. When air containing phosphine passes through the tube, it reacts with a chemical reagent inside the tube, causing a color change. The intensity of the color change correlates with the concentration of phosphine in the air.

• Duration of Measurement: The reaction usually takes around 1-2 minutes, depending on the concentration of the target gas.

• Number of Measurements: The 1/a (10) designation likely indicates the tube's ability to handle 10 measurements of phosphine. This could mean each pack of tubes contains enough material for 10 tests.

• Applications: Commonly used in industries where phosphine is a potential hazard, such as:

  • Agriculture (e.g., fumigation of stored grain)

  • Pharmaceuticals

  • Semiconductor Manufacturing

  • Pest Control (Fumigation)

• Interference: Draeger tubes are designed to be selective for the target gas, but some other gases may cause interference or affect the accuracy of the reading. Always check the product's specifications for any known interferents.

• Shelf Life: Draeger detection tubes typically have a shelf life of 2 to 3 years when stored properly in a cool, dry environment.

• Usage: The tubes are designed for use with Draeger's Accuro® pump or any compatible manual gas sampling pump. A precise volume of air is drawn through the tube, and the resulting color change is then compared against a calibrated scale to determine the phosphine concentration.

Important Considerations:

• Safety: Phosphine is highly toxic and potentially dangerous. Proper precautions and personal protective equipment (PPE) should be used when handling phosphine gas or conducting measurements.

• Handling: Ensure the tubes are stored in a cool, dry place and used before their expiration date for accurate results.