Work Item
ASTM WK87465
New Test Method for Standard Test Method for Determination of the Metal Deactivator Additive (MDA) in Aviation Turbine Fuel by High Performance Liquid Chromatography (HPLC) Method
1. Scope
1. Scope
1.1. This test method covers the determination of the metal deactivator additive (MDA) content of aviation turbine fuels. The specific MDA determined and used to develop this test method is N,N'-disalicylidene-1,2-propanediamine. Other MDA’s have not been tested by this test method.
1.2. The test method is applicable to concentrations of 0.5 to 10.0 mg/L; however, the interim precision of this test method as determined by D6300 is applicable to aviation turbine fuels over the concentration range of 1.0 to 10 mg/L. Higher concentrations can be determined by dilution, but the precision of the test method has not been determined. An extended ILS will be conducted in the future to determine full repeatability and reproducibility and final applicable concentration ranges.
1.3. The test method applies only to aviation fuels conforming to ASTM D1655.
1.3.1. The test method applies to MDA in petroleum-based aviation fuels and Synthetic Aviation Fuels (SAF). However, for the interim precision, a petroleum-based aviation fuel was used. Future ILS will include petroleum-based and SAF’s.
1.4. This test method is divided into two procedures: 1) Procedure A uses a semi-portable capillary-liquid chromatography system (Capillary-HPLC) that may be used in the field or laboratory; 2) Procedure B uses a standard laboratory version of liquid chromatography (Conventional-HPLC). Procedures A and B have separate precisions.
Keywords
aviation turbine fuel; high performance liquid chromatography; MDA; metal deactivator
Rationale
This test method will allow the quantification of MDA in aviation turbine fuels. The MDA additive is used for fuel thermal stability control and for reducing fuel degradation caused by the presence of trace metals (copper in particular) in aviation fuels.
The title and scope are in draft form and are under development within this ASTM Committee.
Work Item Status
Date Initiated: 08-11-2023
Technical Contact: Nikolai Braun
Item: 000
Ballot:
Status: