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ASTM D8545-23e1

(Test Method)

Standard Test Method for Determination of the Metal Deactivator Additive (MDA) (N,N′-disalicylidene-1,2-propanediamine) Content in Aviation Turbine Fuel by High Performance Liquid Chromatography (HPLC)

Standard Test Method for Determination of the Metal Deactivator Additive (MDA) (N,N′-disalicylidene-1,2-propanediamine) Content in Aviation Turbine Fuel by High Performance Liquid Chromatography (HPLC)

SIGNIFICANCE AND USE
5.1 Specification D1655 provides a maximum permissible concentration (5.7 mg/L) of MDA in aviation turbine fuel. This test method will allow the quantification of MDA in aviation turbine fuels. The MDA additive is used for fuel thermal stability control and to reduce fuel degradation caused by the presence of trace metals (copper in particular) in aviation fuels.
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 MDAs have not been tested by this test method.  
1.1.1 This test method specifically covers the determination of uncomplexed MDA content in aviation turbine fuel. MDA is a chelator of divalent metal ions, and the MDA-metal ion complexed species content of aviation turbine fuel will not be accounted for by this test method.  
1.2 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.  
1.3 The test method has an interim repeatability determined in accordance with Practice D6300. Based on the mean values of the samples used in the interim repeatability study, Procedure A is applicable in the range of 0.50 mg/mL to 10.0 mg/mL; the range for Procedure B is 0.60 mg/mL to 9.6 mg/mL. Higher concentrations can be determined by dilution, but the precision of the test method has not been determined.  
1.3.1 An extended interlaboratory study (ILS) will be conducted in the future to determine the full repeatability and reproducibility and the final applicable concentration ranges.  
1.3.2 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 SAFs. The test method is applicable to aviation fuels conforming to Specification D1655.  
1.4 Appendix X2 indicates other additives that have been verified to not interfere with the analysis of this test method.  
1.5 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.  
1.6 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.7 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

General Information

Status
Published
Publication Date
30-Nov-2023
Technical Committee
D02 - Petroleum Products, Liquid Fuels, and Lubricants
Drafting Committee
D02.04.0C - Liquid Chromatography
Current Stage
Ref Project

Relations

Replaces
ASTM D8545-23 - Standard Test Method for Determination of the Metal Deactivator Additive (MDA) (N,N′-disalicylidene-1,2-propanediamine) Content in Aviation Turbine Fuel by High Performance Liquid Chromatography (HPLC)
Effective Date
01-Dec-2023

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ASTM D8545-23e1 - Standard Test Method for Determination of the Metal Deactivator Additive (MDA) (N,N′-disalicylidene-1,2-propanediamine) Content in Aviation Turbine Fuel by High Performance Liquid Chromatography (HPLC)ASTM D8545-23e1 - Standard Test Method for Determination of the Metal Deactivator Additive (MDA) (N,N′-disalicylidene-1,2-propanediamine) Content in Aviation Turbine Fuel by High Performance Liquid Chromatography (HPLC)
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ASTM D8545-23e1 - Standard Test Method for Determination of the Metal Deactivator Additive (MDA) (N,N′-disalicylidene-1,2-propanediamine) Content in Aviation Turbine Fuel by High Performance Liquid Chromatography (HPLC)
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This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the
Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
´1
Designation: D8545 − 23
Standard Test Method for
Determination of the Metal Deactivator Additive (MDA) (N,N'-
disalicylidene-1,2-propanediamine) Content in Aviation
Turbine Fuel by High Performance Liquid Chromatography
1
(HPLC)
This standard is issued under the fixed designation D8545; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1
ε NOTE—Editorially corrected 5.1 in February 2024.
1. Scope used. Future ILS will include petroleum-based and SAFs. The
test method is applicable to aviation fuels conforming to
1.1 This test method covers the determination of the metal
Specification D1655.
deactivator additive (MDA) content of aviation turbine fuels.
The specific MDA determined and used to develop this test 1.4 Appendix X2 indicates other additives that have been
method is N,N'-disalicylidene-1,2-propanediamine. Other verified to not interfere with the analysis of this test method.
MDAs have not been tested by this test method.
1.5 The values stated in SI units are to be regarded as
1.1.1 This test method specifically covers the determination
standard. No other units of measurement are included in this
of uncomplexed MDA content in aviation turbine fuel. MDA is
standard.
a chelator of divalent metal ions, and the MDA-metal ion
1.6 This standard does not purport to address all of the
complexed species content of aviation turbine fuel will not be
safety concerns, if any, associated with its use. It is the
accounted for by this test method.
responsibility of the user of this standard to establish appro-
1.2 This test method is divided into two procedures: (1)
priate safety, health, and environmental practices and deter-
Procedure A uses a semi-portable capillary-liquid chromatog-
mine the applicability of regulatory limitations prior to use.
raphy system (Capillary-HPLC) that may be used in the field or
1.7 This international standard was developed in accor-
laboratory; (2) Procedure B uses a standard laboratory version
dance with internationally recognized principles on standard-
of liquid chromatography (Conventional-HPLC). Procedures A
ization established in the Decision on Principles for the
and B have separate precisions.
Development of International Standards, Guides and Recom-
mendations issued by the World Trade Organization Technical
1.3 The test method has an interim repeatability determined
in accordance with Practice D6300. Based on the mean values Barriers to Trade (TBT) Committee.
of the samples used in the interim repeatability study, Proce-
dure A is applicable in the range of 0.50 mg ⁄mL to 2. Referenced Documents
10.0 mg ⁄mL; the range for Procedure B is 0.60 mg ⁄mL to
2.1 ASTM Standards:
9.6 mg ⁄mL. Higher concentrations can be determined by
D1655 Specification for Aviation Turbine Fuels
dilution, but the precision of the test method has not been
D4052 Test Method for Density, Relative Density, and API
determined.
Gravity of Liquids by Digital Density Meter
1.3.1 An extended interlaboratory study (ILS) will be con-
D4057 Practice for Manual Sampling of Petroleum and
ducted in the future to determine the full repeatability and
Petroleum Products
reproducibility and the final applicable concentration ranges.
D4175 Terminology Relating to Petroleum Products, Liquid
1.3.2 The test method applies to MDA in petroleum-based
Fuels, and Lubricants
aviation fuels and Synthetic Aviation Fuels (SAF). However,
D4177 Practice for Automatic Sampling of Petroleum and
for the interim precision, a petroleum-based aviation fuel was
Petroleum Products
D6299 Practice for Applying Statistical Quality Assurance
and Control Charting Techniques to Evaluate Analytical
1
This test method is under the jurisdiction of ASTM Committee D02 on
Measurement System Performance
Petroleum Products, Liquid Fuels, and Lubricants and is the direct responsibility of
D6300 Practice for Determination of Precision and Bias
Subcommittee D02.04.0C on Liquid Chromatography.
Data for Use in Test Methods for Petroleum Products,
Current edition approved Dec. 1, 2023. Published January 2024. DOI: 10.1520/
D8545-23E01. Liquid Fuels, and Lubricants
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
´1
D8545 − 23
3. Terminology usually is used with a laboratory apparatus and may not be
portable (Procedure B).
3.1 Definitions:
3.1.1 For definitions of terms used in th
...

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1.1 This test method describes the techniques for comparing the brightness of the penetrants used in the fluorescent dye penetrant process. This comparison is performed under controlled conditions that eliminate most of the variables present in actual penetrant examination. Thus, the brightness factor is isolated and is measured independently of the other factors which affect the performance of a penetrant system.  
1.2 The brightness of a penetrant indication is affected by the developer with which it is used. This test method, however, measures the brightness of a penetrant on a convenient filter paper substrate which serves as a substitute for the developer.  
1.3 The brightness measurement obtained is color-corrected to approximate the color response of the average human eye. Since most examinations are done by human eyes, this number has more practical value than a measurement in units of energy emitted. Also, the comparisons are expressed as a percentage of some chosen standard penetrant because no absolute system of measurement exists at this time.  
1.4 The measurements made by this standard compare the brightness of a candidate penetrant to that of a standard penetrant when tested according to the technique. There is no known correlation between the results obtained and the brightness of actual flaw indications obtained using the penetrant in inspection.  
1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.6 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

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