ASTM D7826-23b
(Guide)Standard Guide for Evaluation of New Aviation Gasolines and New Aviation Gasoline Additives
Standard Guide for Evaluation of New Aviation Gasolines and New Aviation Gasoline Additives
SIGNIFICANCE AND USE
5.1 This guide is intended for the developers or sponsors of new aviation gasolines or additives to describe the data requirements necessary to support the development of specifications for these new products by ASTM members. The ultimate goal of the data generated in accordance with this guide is to provide an understanding of the performance of the new fuel or additive within the property constraints and compositional bounds of the proposed specification criteria.
5.2 This guide is not an approval process. It is intended to describe test and analysis requirements necessary to generate data to support specification development. This guide does not address the approval process for ASTM International standards.
5.3 This guide will reduce the uncertainty and risk to developers or sponsors of new aviation gasolines or additives by describing the test and analysis requirements necessary to proceed with the development of an ASTM International specification for aviation gasoline or specification revision for an aviation gasoline additive. There are certain sections within this guide that do not specify an exact number of data points required. For example, 6.2.4.3 requires viscosity to be measured from freezing point to room temperature; 6.2.4.4, 6.2.4.5, and 6.3.2.3 require measurements over the operating temperature range; 6.3.2.4 and 6.3.2.5 require measurements versus temperature. In these cases, the developers or sponsors of new aviation gasolines or additives should attempt to generate data close to the upper and lower boundaries indicated. If no boundary is specified (for example, generate data versus temperature), then data at the widest practical test limits should be generated. A minimum of three data points is required in all cases (for example, upper, middle, lower), while five or more data points are preferred.
5.4 This guide does not purport to specify an all-inclusive listing of test and analysis requirements to achieve ASTM International approval ...
SCOPE
1.1 This guide provides procedures to develop data for use in research reports for new aviation gasolines or new aviation gasoline additives.
1.2 This data is intended to be used by the ASTM subcommittee to make a determination of the suitability of the fuel for use as an aviation fuel in either a fleet-wide or limited capacity, and to make a determination that the proposed properties and criteria in the associated standard specification provide the necessary controls to ensure this fuel maintains this suitability during high-volume production.
1.3 These research reports are intended to support the development and issuance of new specifications or specification revisions for these products. Guidance to develop ASTM International standard specifications for aviation gasoline is provided in Subcommittee J on Aviation Fuels Operating Procedures, Annex A6, “Guidelines for the Development and Acceptance of a New Aviation Fuel Specification for Spark-Ignition Reciprocating Engines.”
1.4 The procedures, tests, selection of materials, engines, and aircraft detailed in this guide are based on industry expertise to give appropriate data for review. Because of the diversity of aviation hardware and potential variation in fuel/additive formulations, not every aspect may be encompassed and further work may be required. Therefore, additional data beyond that described in this guide may be requested by the ASTM task force, Subcommittee J, or Committee D02 upon review of the specific composition, performance, or other characteristics of the candidate fuel or additive.
1.5 While it is beyond the scope of this guide, investigation of the future health and environmental impacts of the new aviation gasoline or new aviation gasoline additive and the requirements of environmental agencies is recommended.
1.6 The values stated in SI units are to be regarded as standard.
1.6.1 Exception—Some industry standard methodologies uti...
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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.
Designation: D7826 − 23b
Standard Guide for
Evaluation of New Aviation Gasolines and New Aviation
1
Gasoline Additives
This standard is issued under the fixed designation D7826; 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. Scope* 1.6.1 Exception—Some industry standard methodologies
utilize imperial units as their primary system (permeability;
1.1 This guide provides procedures to develop data for use
Table A2.2).
in research reports for new aviation gasolines or new aviation
1.7 This standard does not purport to address all of the
gasoline additives.
safety concerns, if any, associated with its use. It is the
1.2 This data is intended to be used by the ASTM subcom-
responsibility of the user of this standard to establish appro-
mittee to make a determination of the suitability of the fuel for
priate safety, health, and environmental practices and deter-
use as an aviation fuel in either a fleet-wide or limited capacity,
mine the applicability of regulatory limitations prior to use.
and to make a determination that the proposed properties and
1.8 This international standard was developed in accor-
criteria in the associated standard specification provide the
dance with internationally recognized principles on standard-
necessary controls to ensure this fuel maintains this suitability
ization established in the Decision on Principles for the
during high-volume production.
Development of International Standards, Guides and Recom-
1.3 These research reports are intended to support the
mendations issued by the World Trade Organization Technical
development and issuance of new specifications or specifica-
Barriers to Trade (TBT) Committee.
tion revisions for these products. Guidance to develop ASTM
International standard specifications for aviation gasoline is
2. Referenced Documents
provided in Subcommittee J on Aviation Fuels Operating
2
2.1 ASTM Standards:
Procedures, Annex A6, “Guidelines for the Development and
D86 Test Method for Distillation of Petroleum Products and
Acceptance of a New Aviation Fuel Specification for Spark-
Liquid Fuels at Atmospheric Pressure
Ignition Reciprocating Engines.”
D97 Test Method for Pour Point of Petroleum Products
1.4 The procedures, tests, selection of materials, engines,
D130 Test Method for Corrosiveness to Copper from Petro-
and aircraft detailed in this guide are based on industry
leum Products by Copper Strip Test
expertise to give appropriate data for review. Because of the
D156 Test Method for Saybolt Color of Petroleum Products
diversity of aviation hardware and potential variation in
(Saybolt Chromometer Method)
fuel/additive formulations, not every aspect may be encom-
D323 Test Method for Vapor Pressure of Petroleum Products
passed and further work may be required. Therefore, additional
(Reid Method)
data beyond that described in this guide may be requested by
D381 Test Method for Gum Content in Fuels by Jet Evapo-
the ASTM task force, Subcommittee J, or Committee D02
ration
upon review of the specific composition, performance, or other
D395 Test Methods for Rubber Property—Compression Set
characteristics of the candidate fuel or additive.
D412 Test Methods for Vulcanized Rubber and Thermoplas-
tic Elastomers—Tension
1.5 While it is beyond the scope of this guide, investigation
D445 Test Method for Kinematic Viscosity of Transparent
of the future health and environmental impacts of the new
and Opaque Liquids (and Calculation of Dynamic Viscos-
aviation gasoline or new aviation gasoline additive and the
ity)
requirements of environmental agencies is recommended.
D471 Test Method for Rubber Property—Effect of Liquids
1.6 The values stated in SI units are to be regarded as
D664 Test Method for Acid Number of Petroleum Products
standard.
by Potentiometric Titration
1
This guide is under the jurisdiction of ASTM Committee D02 on Petroleum
Products, Liquid Fuels, and Lubricants and is the direct responsibility of Subcom-
2
mittee D02.J0.02 on Aviation Piston Engine Fuels. For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Current edition approved Nov. 1, 2023. Published December 2023. Originally contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
approved in 2013. Last previous edition approved in 2023 as D7826 – 23a. DOI: Standards volume information, refer to the standard’s Document Summary page on
10.1520/D7826-23B. the ASTM website.
*A Summary of Changes secti
...
This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: D7826 − 23a D7826 − 23b
Standard Guide for
Evaluation of New Aviation Gasolines and New Aviation
1
Gasoline Additives
This standard is issued under the fixed designation D7826; 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. Scope*
1.1 This guide provides procedures to develop data for use in research reports for new aviation gasolines or new aviation gasoline
additives.
1.2 This data is intended to be used by the ASTM subcommittee to make a determination of the suitability of the fuel for use as
an aviation fuel in either a fleet-wide or limited capacity, and to make a determination that the proposed properties and criteria in
the associated standard specification provide the necessary controls to ensure this fuel maintains this suitability during high-volume
production.
1.3 These research reports are intended to support the development and issuance of new specifications or specification revisions
for these products. Guidance to develop ASTM International standard specifications for aviation gasoline is provided in
Subcommittee J on Aviation Fuels Operating Procedures, Annex A6, “Guidelines for the Development and Acceptance of a New
Aviation Fuel Specification for Spark-Ignition Reciprocating Engines.”
1.4 The procedures, tests, selection of materials, engines, and aircraft detailed in this guide are based on industry expertise to give
appropriate data for review. Because of the diversity of aviation hardware and potential variation in fuel/additive formulations, not
every aspect may be encompassed and further work may be required. Therefore, additional data beyond that described in this guide
may be requested by the ASTM task force, Subcommittee J, or Committee D02 upon review of the specific composition,
performance, or other characteristics of the candidate fuel or additive.
1.5 While it is beyond the scope of this guide, investigation of the future health and environmental impacts of the new aviation
gasoline or new aviation gasoline additive and the requirements of environmental agencies is recommended.
1.6 The values stated in SI units are to be regarded as standard.
1.6.1 Exception—Some industry standard methodologies utilize imperial units as their primary system (permeability; Table A2.2).
1.7 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
This guide is under the jurisdiction of ASTM Committee D02 on Petroleum Products, Liquid Fuels, and Lubricants and is the direct responsibility of Subcommittee
D02.J0.02 on Aviation Piston Engine Fuels.
Current edition approved July 1, 2023Nov. 1, 2023. Published July 2023December 2023. Originally approved in 2013. Last previous edition approved in 2023 as
D7826 – 23.D7826 – 23a. DOI: 10.1520/D7826-23A.10.1520/D7826-23B.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
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D7826 − 23b
1.8 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.
2. Referenced Documents
2
2.1 ASTM Standards:
D86 Test Method for Distillation of Petroleum Products and Liquid Fuels at Atmospheric Pressure
D97 Test Method for Pour Point of Petroleum Products
D130 Test Method for Corrosiveness to Copper from Petroleum Products by Copper Strip Test
D156 Test Method for Saybolt Color of Petroleum Products (Saybolt Chromometer Method)
D323 Test Method for Vapor Pressure of Petroleum Products (Reid Method)
D381 Test Method for Gum Content in Fuels by Jet Evaporation
D395 Test Methods for Rubber Property—Compression Set
D412 Test Methods for Vulcanized Rubber and Thermoplastic Elastomers—Tension
D445 Test Method for Kinematic Viscosity of Transparent and Opaque Liquids (and Calculation of Dynamic Viscosity)
...
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