Important notice: Website update - 28th of January 2025
We're merging our website with our main site to offer a more streamlined experience. To make the switch smooth, this website undergoing maintenance and will be unavailable on the 28th of January 2025. This means you won't be able to purchase publications. Don't worry, everything will be available on the new site by the end of the day. To avoid any hiccups, we recommend holding off on purchases until then. Thank you for your patience, and see you on the new site soon!
IP 528: Determination of the freezing point of aviation turbine fuels — Automated fibre optic method
- Method adopted/last revised: 2016
- Method reapproved: None
- REF/ISBN: IP528-7256059
- Status: Current
- First printed in STM books: May 2019
-
Scope
This standard specifies a procedure for the determination of the temperature below which solid hydrocarbon crystals are present in aviation turbine fuels. The standard is applicable to aviation turbine fuels with freezing points in the range of -70 °C to 0 °C. However the precision statements are only applicable over the range !60 °C to -42 °C.
NOTE - In the Round Robin data collecting exercise, from which the precision of this test method was calculated, 14 % of the results from IP 528 were reported warmer
than the mean results of the same samples when tested by IP 16 plus the IP 16 reproducibility. As a consequence it is possible that when determining freezing points using this method a falsely high result may be quoted which might falsely indicate a possible contamination. If this occurs it is recommended that the sample be reanalysed using another approved freezing point test method.
Members Benefits
Are you an EI Member? If yes, register/log in now to ensure you receive free access or discounts to EI publications.
If you are not a Member, why not join today and receive all of the benefits of EI Membership? EI Members are entitled to a 25% discount on most EI publications.