API/IP SPEC 1590-2002

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Specifications and Qualification Procedures for Aviation Fuel Microfilters

Published By	Publication Date	Number of Pages
API	2002	38

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Category: API

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Description

This is the 2nd edition of this specification. The 1st edition was published by The Institute of Petroleum in 1999. This edition is jointly published by The American Petroleum Institute (API) and The Institute of Petroleum (IP) and has been suitably coded as specification 1590.

This edition of the specification was developed to align API and IP perspectives and clarify certain testing requirements. The test fuel chemistry is changed in this edition to provide alignment with a revision of API/IP 1581 Specification and qualification procedures for aviation jet fuel filter/separators, but no changes in element performance requirements between this and the 1st edition of the specification are intended. Equipment qualified to the 1st edition of this specification remains qualified to this edition subject to purchaser's agreement.

This publication describes specifications and qualification test procedures for microfilter elements of the disposable cartridge type and, separately, the manufacturing requirements for new vessels for use in aviation jet fuel-handling systems. It relates only to elements nominally rated within the range 1,0-5,0 µm. This specification provides test conditions and minimum flow rates for microfilter elements having an outside diameter of 150 mm (6 in.). Microfilter elements of other diameters may fall within the scope of this specification when manufacturer and purchaser agree to minimum flow rates and certain test conditions. These specifications are for the convenience of purchasers in ordering, and manufacturers in fabricating, microfilter vessels and elements. They are not in any way intended to prohibit either the purchase or manufacture of microfilter elements meeting other requirements.

Once an element model has been qualified, any change in design or materials voids the qualification of that model. It may not be necessary to conduct all of the performance tests in this specification to re-qualify a modified model depending upon the details of the changes.

The vessel requirements included in this specification refer to new, purpose built microfilter vessels. This specification does not discourage the use of existing vessels, which continue to meet purchasers’ needs, regardless of compliance with the mechanical requirements of this specification.

This publication specifies microfilter element performance in terms of single element tests only (no full-scale testing is required). This permits the purchaser maximum flexibility in the application of microfilter elements. Purchasers, however, should be aware that the design and application of full-scale vessels could impact field performance. Users should also be aware that the field performance of microfilters is affected by a number of parameters. For example an additive-containing fuel may subsequently disperse dirt particles collected by a microfilter from an additive-free fuel such that particles are released to the fuel stream.

The American Petroleum Institute and The Institute of Petroleum are not undertaking to meet the duties of employers, manufacturers or suppliers to warn and properly train and equip their employees, and others exposed, concerning health and safety risks and precautions, nor undertaking their obligations under local and regional laws and regulations.

Nothing contained in any American Petroleum Institute or Institute of Petroleum joint publication is to be construed as granting any right, by implication or otherwise, for the manufacture, sale, or use of any method, apparatus, or product covered by letters patent. Neither should anything contained in the publication be construed as insuring anyone against liability for infringement of letters patent.

It is hoped and anticipated that this publication will assist both the manufacturers and purchasers of microfilters. Every effort has been made by the American Petroleum Institute and the Institute of Petroleum to assure the accuracy and reliability of the data contained in this publication; however, API and IP make no representation, warranty, or guarantee in connection with this publication and hereby expressly disclaims any liability or responsibility for loss or damage resulting from its use or for the violation of any local or regional laws or regulations with which this publication may conflict.

Suggested revisions are invited and should be submitted to the Manager of Standardization, American Petroleum Institute, 1220 L Street, N.W., Washington, D.C. 20005, USA or to the Technical Department, Institute of Petroleum, 61 New Cavendish Street, London, W1G 7AR, UK.

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