EI 1583 Laboratory tests and minimum performance levels for aviation fuel filter monitors

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EI Publications

  • Published: November 2017
  • REF/ISBN: 9780852938546
  • Edition: 7th
  • Status: New

Update: 27 November 2017

The EI has received data demonstrating that filter monitor elements qualified to the requirements of EI 1583 Laboratory tests and minimum performance levels for aviation fuel filter monitors, 6th or 7th editions may not be fit-for-purpose due to their release of super-absorbent polymer, particularly at differential pressures above 15 psi (caused by water injection into fuel; below their rated flow).

Users of this technology for into-plane fuelling applications shall review this with their filter monitor suppliers as a matter of urgency and implement measures to mitigate the risk of SAP migration.

The EI is supportive of the IATA SAP Special Interest Group position statement that filter monitors shall be phased out of all aviation fuel handling systems.

EI will not be maintaining or updating EI 1583 beyond its current 7th edition and will withdraw the specification by no later than 31 December 2020. Until then, only modifications to existing qualified elements that reduce the level of SAP migration will be eligible for an EI qualification test witness. EI is focusing all available resources on supporting the development of alternative technologies to replace filter monitors.

Manufacturers who provide filter monitor elements in nominal diameters outside of the scope of EI 1583 (which covers only two inch out to in flow format and six inch in to out and out to in flow formats) shall investigate their propensity for SAP migration at elevated differential pressure (caused by water-wetting) and communicate the risk to all element users.

This publication provides industry with general mechanical specifications for new aviation fuel filter monitor designs, laboratory test procedures and minimum laboratory performance levels for selected aspects of the performance of filter monitor elements and systems.

The only change in this edition from the sixth edition is the inclusion of a requirement that super-absorbent polymer is not detectable in fuel downstream of a filter monitor element under test during Qualification Test 1 and 10.

As no other changes have been made to the qualification testing requirements that were included in the 6th edition, existing qualifications to EI 1583 6th edition are recognised as also meeting the requirements of this 7th edition if the ICP copper values obtained during both qualification test 1 and 10 were below the lower limit of detection for the method (≤ 50 ppb). This read-across from the 6th to 7th editions applies only to the specific model qualified.

This document will be of particular interest to all those involved in the manufacture, supply and procurement of aviation fuel filter monitors.

Users of previous editions of this title should note that, with the publication of the 7th edition of EI 1583, the 6th edition is hereby formally withdrawn from publication.

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