ISO 4548-2 Full Flow Lubricating Oil Filters for Internal Combustion Engines, Part 2: Standard Test for Element Bypass Valve Properties

EUROLAB laboratory provides testing and compliance services within the scope of ISO 4548-2 standard. This part of ISO 4548 specifies tests to determine the element bypass valve characteristics of full-flow lubricating oil filters for internal combustion engines.

The tests are specified with oils of two viscosities, one to evaluate the performance of the element bypass valve with cold oil and the other to evaluate its performance with an oil at a typical operating temperature.

ISO 4548 establishes standard test procedures for measuring the performance of full-flow lubricating oil filters for internal combustion engines. It has been prepared in separate parts, each of which relates to a specific performance characteristic.

The tests together provide the necessary information to evaluate the properties of a filter, but tests can be performed separately if agreed between the buyer and the manufacturer.

This revision of this part of ISO 4548 has been made to bring the presentation in line with the requirements of current ISO Directives. The main changes are editorial changes that affect the layout and text. Minor technical changes include the inclusion of ISO VG and SAE oil grades for test fluids and the addition of a note on the specification of valve opening pressure.

EUROLAB assists manufacturers with ISO 4548-2 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.