Standard Test Method for SAE J844 Non-Metallic Air Brake System Hose

EUROLAB, with its state-of-the-art accredited laboratories and expert team, provides precise and fast testing services within the scope of SAE J844 testing. This SAE standard specifies minimum requirements for non-metallic tubing manufactured for use in air brake systems. Non-fortified products are designated type A and fortified products are designated type B. It is not intended to cover piping for any part of the system operating below -40°C, above +93°C, above 1,0 maximum working pressure.

This pipe is designed for use in the brake system for connections that maintain a basically constant relationship between components during vehicle operation. Convoluted tubing assemblies required for installations where flexing occurs are covered by this document.

General Requirements

• The test temperature should use ±3 °C as the test tolerance range,
• All test times are minimum unless otherwise stated.
• Dry air will have a minimum dew point of -50°C,
• Pipes should be cut square at 90 degrees ± 7 degrees,
• Precondition all test specimens at 0,7 MPa ± 0,1 MPa for 30 seconds without leakage,
• A new sample will be used for all tests.

EUROLAB assists manufacturers with SAE J844 test compliance. Our test experts, with their professional working mission and principles, provide you, our manufacturers and suppliers, the best service and controlled testing process in our laboratories. Thanks to these services, businesses receive more effective, high-performance and quality testing services and provide safe, fast and uninterrupted service to their customers.