ASTM D7717-11(2021)
(Practice)Standard Practice for Preparing Volumetric Blends of Denatured Fuel Ethanol and Gasoline Blendstocks for Laboratory Analysis
Standard Practice for Preparing Volumetric Blends of Denatured Fuel Ethanol and Gasoline Blendstocks for Laboratory Analysis
SIGNIFICANCE AND USE
5.1 Typically, denatured fuel ethanol is added to gasoline blendstocks after production. For laboratories to test a sample that is similar to the finished fuel available in the market, it is important to provide a laboratory practice that standardizes the preparation of a blend of denatured fuel ethanol and gasoline blendstock.
5.2 The laboratory blend shall be prepared volumetrically to yield a fuel similar to that produced for consumer use.
5.3 When applicable, blends shall meet requirements of CFR 40.80, Subpart D—Reformulated Gasoline.
SCOPE
1.1 This practice covers and provides instructions on making a volumetric blend of denatured fuel ethanol with gasoline blendstocks, such as a reformulated gasoline blendstock for oxygenate blending (RBOB) or a conventional gasoline blendstock for oxygenate blending (CBOB).
1.2 This practice does not preclude the use of automated volumetric blending systems.
1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.4 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.
1.5 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-Sep-2021
- Technical Committee
- D02 - Petroleum Products, Liquid Fuels, and Lubricants
- Drafting Committee
- D02.04.0A - Preparation of Standard Hydrocarbon Blends
Relations
- Effective Date
- 01-Jan-2024
- Effective Date
- 01-Dec-2023
- Effective Date
- 01-Feb-2020
- Effective Date
- 01-Dec-2019
- Effective Date
- 15-Sep-2019
- Effective Date
- 01-Mar-2019
- Effective Date
- 01-Dec-2018
- Effective Date
- 01-Oct-2018
- Effective Date
- 01-Jul-2018
- Effective Date
- 01-Apr-2018
- Effective Date
- 01-Jan-2018
- Effective Date
- 01-Jul-2017
- Effective Date
- 01-May-2017
- Effective Date
- 15-Nov-2016
- Effective Date
- 15-Nov-2016
Overview
ASTM D7717-11(2021) is a recognized standard practice developed by ASTM International for preparing volumetric blends of denatured fuel ethanol and gasoline blendstocks for laboratory analysis. This standard provides instructions and best practices for creating laboratory samples that accurately reflect the makeup of finished fuels supplied to consumers, ensuring consistency and reliability in laboratory testing. The standard enables compliance with relevant regulatory requirements and establishes a uniform approach necessary for comparative fuel analysis, performance testing, and quality assurance in the automotive fuels sector.
Key Topics
- Volumetric Blending Procedures: Guidance on combining denatured fuel ethanol with gasoline blendstocks such as reformulated gasoline blendstock for oxygenate blending (RBOB) or conventional gasoline blendstock for oxygenate blending (CBOB).
- Preparation Steps: Emphasis on chilling all components and apparatus (to reduce vapor loss and temperature increase) and careful measurement using suitable volumetric glassware.
- Component Selection: Recommendation to use denatured fuel ethanol that meets ASTM Specification D4806 for use in laboratory blends, aligning with real-world production.
- Calculation Methods: Step-by-step approach for determining the required volumes of denatured ethanol and gasoline blendstock, including consideration for the ethanol’s purity.
- Mixing Techniques: Blend preparation and mixing instructions designed to minimize sample loss and maintain sample integrity.
- Measurement and Verification: Use of established ASTM methods, such as D5599 and D4815, for verifying blend composition when required.
- Health and Safety: While focusing on technical procedures, the standard underscores the responsibility of users to identify and address safety, health, and environmental concerns related to blending operations.
Applications
- Fuel Blender Laboratories: Ensuring that analysis samples accurately represent finished gasoline-ethanol blends available in the marketplace, supporting consistent quality control.
- Refineries and Testing Facilities: Application in test labs simulating finished products by blending denatured fuel ethanol and gasoline blendstocks prior to analysis for regulatory or performance evaluation.
- Regulatory Compliance: Preparation of laboratory blends that can be used to demonstrate compliance with environmental requirements, such as those set forth in CFR 40.80, Subpart D-Reformulated Gasoline.
- Research and Development: Supporting the development of new fuels or analysis methods by providing a standardized way to prepare blends with precise ethanol content.
- Product Certification: Assists manufacturers and certification bodies in verifying that gasoline-ethanol blends meet required specifications before they reach the consumer.
Related Standards
- ASTM D4806 – Specification for Denatured Fuel Ethanol for Blending with Gasolines: Reference guideline for ensuring ethanol quality prior to blending.
- ASTM D4814 – Specification for Automotive Spark-Ignition Engine Fuel: Defines requirements for the base gasoline used in blends.
- ASTM D4815 – Test Method for Determination of Oxygenates in Gasoline by Gas Chromatography: Used to verify oxygenate, such as ethanol, content in samples.
- ASTM D5501 – Test Method for Determination of Ethanol and Methanol Content in Fuels by Gas Chromatography: Applicable for confirming blend composition.
- ASTM D5599 – Test Method for Determination of Oxygenates in Gasoline: Utilized for blend composition verification and analysis.
- CFR 40.80, Subpart D: United States Environmental Protection Agency regulation covering reformulated gasoline requirements.
Practical Value
By implementing ASTM D7717-11(2021), fuel laboratories benefit from a standardized, reproducible approach to preparing gasoline-ethanol blends for analysis. This harmonization improves accuracy in test results, facilitates regulatory compliance, and enhances confidence in fuel quality throughout the supply chain. The practice ultimately supports industry-wide consistency in analytical testing and consumer confidence in fuel performance.
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Frequently Asked Questions
ASTM D7717-11(2021) is a standard published by ASTM International. Its full title is "Standard Practice for Preparing Volumetric Blends of Denatured Fuel Ethanol and Gasoline Blendstocks for Laboratory Analysis". This standard covers: SIGNIFICANCE AND USE 5.1 Typically, denatured fuel ethanol is added to gasoline blendstocks after production. For laboratories to test a sample that is similar to the finished fuel available in the market, it is important to provide a laboratory practice that standardizes the preparation of a blend of denatured fuel ethanol and gasoline blendstock. 5.2 The laboratory blend shall be prepared volumetrically to yield a fuel similar to that produced for consumer use. 5.3 When applicable, blends shall meet requirements of CFR 40.80, Subpart D—Reformulated Gasoline. SCOPE 1.1 This practice covers and provides instructions on making a volumetric blend of denatured fuel ethanol with gasoline blendstocks, such as a reformulated gasoline blendstock for oxygenate blending (RBOB) or a conventional gasoline blendstock for oxygenate blending (CBOB). 1.2 This practice does not preclude the use of automated volumetric blending systems. 1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.4 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. 1.5 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.
SIGNIFICANCE AND USE 5.1 Typically, denatured fuel ethanol is added to gasoline blendstocks after production. For laboratories to test a sample that is similar to the finished fuel available in the market, it is important to provide a laboratory practice that standardizes the preparation of a blend of denatured fuel ethanol and gasoline blendstock. 5.2 The laboratory blend shall be prepared volumetrically to yield a fuel similar to that produced for consumer use. 5.3 When applicable, blends shall meet requirements of CFR 40.80, Subpart D—Reformulated Gasoline. SCOPE 1.1 This practice covers and provides instructions on making a volumetric blend of denatured fuel ethanol with gasoline blendstocks, such as a reformulated gasoline blendstock for oxygenate blending (RBOB) or a conventional gasoline blendstock for oxygenate blending (CBOB). 1.2 This practice does not preclude the use of automated volumetric blending systems. 1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.4 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. 1.5 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.
ASTM D7717-11(2021) is classified under the following ICS (International Classification for Standards) categories: 75.160.20 - Liquid fuels. The ICS classification helps identify the subject area and facilitates finding related standards.
ASTM D7717-11(2021) has the following relationships with other standards: It is inter standard links to ASTM D4814-24, ASTM D4814-23a, ASTM D4814-20, ASTM D4814-19a, ASTM D4806-19a, ASTM D4806-19, ASTM D4806-18a, ASTM D4814-18c, ASTM D4806-18, ASTM D4814-18a, ASTM D4814-18, ASTM D4806-17, ASTM D5599-17, ASTM D4814-16e, ASTM D4814-16ee1. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
ASTM D7717-11(2021) is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.
Standards Content (Sample)
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: D7717 − 11 (Reapproved 2021)
Standard Practice for
Preparing Volumetric Blends of Denatured Fuel Ethanol and
Gasoline Blendstocks for Laboratory Analysis
This standard is issued under the fixed designation D7717; 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 hols in Gasoline by Gas Chromatography
D5501 Test Method for Determination of Ethanol and
1.1 This practice covers and provides instructions on mak-
Methanol Content in Fuels Containing Greater than 20 %
ing a volumetric blend of denatured fuel ethanol with gasoline
Ethanol by Gas Chromatography
blendstocks, such as a reformulated gasoline blendstock for
D5599 Test Method for Determination of Oxygenates in
oxygenate blending (RBOB) or a conventional gasoline blend-
Gasoline by Gas Chromatography and Oxygen Selective
stock for oxygenate blending (CBOB).
Flame Ionization Detection
1.2 This practice does not preclude the use of automated 3
2.2 Federal Standard:
volumetric blending systems.
CFR 40.80 Title 40 —Protection of Environment, Chapter
1.3 The values stated in SI units are to be regarded as
1—Environmental Protection Agency (continued), Part
standard. No other units of measurement are included in this
80—Regulation of Fuels and FuelAdditives, Subpart D—
standard.
Reformulated Gasoline
1.4 This standard does not purport to address all of the
3. Terminology
safety concerns, if any, associated with its use. It is the
responsibility of the user of this standard to establish appro- 3.1 Definitions:
3.1.1 denaturants, n—materials added to ethanol to make it
priate safety, health, and environmental practices and deter-
mine the applicability of regulatory limitations prior to use. unsuitable for beverage use under a formula approved by a
regulatory agency to prevent the imposition of beverage
1.5 This international standard was developed in accor-
dance with internationally recognized principles on standard- alcohol tax. D4806
ization established in the Decision on Principles for the
3.1.2 denatured fuel ethanol, n—fuel ethanol made unfit for
Development of International Standards, Guides and Recom-
beverage use by the addition of denaturants under formula(s)
mendations issued by the World Trade Organization Technical
approved by the applicable regulatory agency to prevent the
Barriers to Trade (TBT) Committee.
imposition of beverage alcohol tax. D4806
3.1.3 gasoline, n—volatile mixture of liquid hydrocarbons,
2. Referenced Documents
generally containing small amounts of additives, suitable for
2.1 ASTM Standards:
use as a fuel in spark-ignition, internal combustion engines.
D4806 Specification for Denatured Fuel Ethanol for Blend-
D4814
ing with Gasolines for Use as Automotive Spark-Ignition
3.1.4 gasoline-alcohol blend, n—fuel consisting primarily
Engine Fuel
of gasoline along with a substantial amount (more than 0.35 %
D4814 Specification for Automotive Spark-Ignition Engine
by mass oxygen or more than 0.15 % by mass oxygen if
Fuel
methanol is the only oxygenate) of one or more alcohols.
D4815 Test Method for Determination of MTBE, ETBE,
D4814
TAME, DIPE, tertiary-Amyl Alcohol and C to C Alco-
1 4
3.2 Abbreviations:
3.2.1 CBOB—conventional gasoline blendstock for oxygen-
This practice is under the jurisdiction of ASTM Committee D02 on Petroleum
ate blending.
Products, Liquid Fuels, and Lubricants and is the direct responsibility of Subcom-
mittee D02.04.0A on Preparation of Standard Hydrocarbon Blends.
3.2.2 RBOB—reformulated gasoline blendstock for oxygen-
Current edition approved Oct. 1, 2021. Published November 2021. Originally
ate blending.
approved in 2011. Last previous edition approved in 2017 as D7717 – 11 (2017).
DOI: 10.1520/D7717-11R21.
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM AvailablefromU.S.GovernmentPrintingOfficeSuperintendentofDocuments,
Standards volume information, refer to the standard’s Document Summary page on 732 N. Capitol St., NW, Mail Stop: SDE, Washington, DC 20401, http://
the ASTM website. www.access.gpo.gov.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
D7717 − 11 (2021)
4. Summary of Practice 7.7 Perform the following actions as efficiently as possible
to minimize vapor loss and temperature increase.
4.1 Aspecific measured volume of denatured fuel ethanol is
blended with a gasoline blendstock to achieve a final blend of
7.8 Depending on the volume of denatured ethanol needed
a predetermined percentage of denatured fuel ethanol. The as determined by Eq 1, measure the volume using the appro-
blend shall be prepared with all components and apparatus
priate pipet, graduated cylinder, or other suitable volumetric
chilled. The total volume of the blend prepared is dependent measuring device.
upon the volume needed to complete required testing.
7.9 When using a volumetric flask, add measured denatured
ethanol to the volumetric flask and bring up to volume with
5. Significance and Use
gasoline blendstock.
5.1 Typically, denatured fuel ethanol is added to gasoline
7.10 When not using a volumetric flask and depending
...
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