Gastec P-3-M Permeation Tube Ammonia

Description

The P-3-M tube contains liquefied Ammonia. When maintained at a constant temperature in a calibration oven, the gas permeates through the tube’s membrane at a predictable, repeatable rate. By controlling the flow of a diluent gas (usually dry air) over the tube, technicians can create precise calibration standards in the parts per million (ppm) range.

Brand

Gastec

Although, technology is always evolving, one demand on our products never changes: the demand for customer safety. Whenever we contribute to customer safety, we are presented with an opportunity to develop further.

GASTEC holds this corporate creed of safety and development in high esteem, as it strives to grow while always putting customer safety first.

Features

Traceable Accuracy: Provides a reliable alternative to unstable Ammonia gas cylinders for low-to-mid level calibration.
80% Lower Adsorption Risk: Generating gas “on-demand” via permeation minimizes the time Ammonia spends in contact with tubing, ensuring the concentration at the sensor is what you intended.
Temperature Sensitivity: The permeation rate is highly sensitive to temperature; a precise oven (like the Gastec PD-2) allows you to adjust concentrations by simply changing the temperature setpoint.
Compact & Safe: Contains a very small total volume of Ammonia, making it much safer to ship and store than high-pressure cylinders.
Long Shelf Life: When stored in a cool, dry environment, these tubes remain stable for approximately 6 to 12 months of active use.

Specifications

Feature	Specification
Chemical Name	Ammonia ( $NH_3$ )
Gastec Model	P-3-M
Typical Range	Medium Concentration (M-series)
Compatibility	Gastec PD-2, PD-1B, or PD-1C
Operating Temp	Typically 35°C, 40°C, or 50°C
Storage Requirement	Ambient or refrigerated ( $0-5^circ C$ ) for longevity

Applications

The Gastec P-3-M Permeation tube ammonia is utilized across several critical sectors where gas precision is required:

Chemical Processing: Monitoring ammonia levels in production areas for leak detection.
Cold Storage: Calibrating sensors in refrigeration systems that use ammonia as a coolant.
Laboratory Analysis: Providing stable gas standards for environmental air quality research.
Occupational Health: Verifying the accuracy of wearable gas monitors to protect workers.