American Petroleum Institute

LABORATORY TESTS AND MINIMUM PERFORMANCE LEVELS FOR AVIATION FUEL DIRT DEFENCE FILTERS - First Edition; Now Copyrighted by EI
 N API/IP 1599

Annotation

This publication provides minimum recommendations for:

1. Selected aspects of dirt defence filter element performance.

2. The general mechanical specifications for dirt defence filter elements.

3. Laboratory tests and minimum performance requirements for the qualification of new dirt defence filter elements.

4. Requalification and similarity requirements.

The laboratory tests specified in this publication are intended to provide standard methods of evaluating selected aspects of the performance of new dirt defence filter element designs, which may be relevant to field service. They are not intended to predict the actual performance of dirt defence filters in field service. Aspects of field performance including dirt removal efficiency and service life vary with different operating environments. Users should work with their suppliers to ensure that their application of dirt defence filters provides the performance needed in the particular application.

The scope of this publication is limited to elements of 50 mm (2 in.) nominal diameter up to 76 cm (30 in.) nominal length flowing out-to-in, and 150 mm (6 in.) nominal diameter up to 145 cm (57 in.) nominal length flowing out-to-in.

This publication does not address:

1. Specific material requirements for the dirt defence filter element.

2. The performance testing of a dirt defence filter system.