ASTM D7153-22

Standard Test Method for Freezing Point of Aviation Fuels (Automatic Laser Method)

SIGNIFICANCE AND USE
5.1 The freezing point of an aviation fuel is the lowest temperature at which the fuel remains free of solid hydrocarbon crystals which, if present in the fuel system of the aircraft, can restrict the flow of fuel through filters. The temperature of the fuel in the aircraft tank normally decreases during flight depending on aircraft speed, altitude, and flight duration. The freezing point of the fuel shall always be lower than the minimum operational fuel temperature.  
5.2 Petroleum blending operations require precise measurement of the freezing point.  
5.3 This test method expresses results to the nearest 0.1 °C, and it eliminates most of the operator time and judgment required by Test Method D2386.  
5.4 When a specification requires Test Method D2386, do not substitute this test method or any other test method.
SCOPE
1.1 This test method covers the determination of the temperature below which solid hydrocarbon crystals may form in aviation turbine fuels.  
1.2 This test method is designed to cover the temperature range of –80 °C to 20 °C; however, the interlaboratory study mentioned in 12.4 has only demonstrated the test method with fuels having freezing points in the range of –60 °C to –42 °C.  
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 to 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: Historical
• Publication Date: 31-Mar-2022
• ICS: 75.160.20 - Liquid fuels
• Technical Committee: D02 - Petroleum Products, Liquid Fuels, and Lubricants
• Drafting Committee: D02.07 - Flow Properties

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation: D7153 −22
IP 529⁄16
Standard Test Method for
Freezing Point of Aviation Fuels (Automatic Laser
1,2
Method)
This standard is issued under the fixed designation D7153; 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* 2. Referenced Documents
3
2.1 ASTM Standards:
1.1 This test method covers the determination of the tem-
D2386 Test Method for Freezing Point of Aviation Fuels
perature below which solid hydrocarbon crystals may form in
D4057 Practice for Manual Sampling of Petroleum and
aviation turbine fuels.
Petroleum Products
1.2 This test method is designed to cover the temperature
D4177 Practice for Automatic Sampling of Petroleum and
range of –80 °C to 20 °C; however, the interlaboratory study
Petroleum Products
mentioned in 12.4 has only demonstrated the test method with 2.2 Energy Institute Standard:
4
fuels having freezing points in the range of –60 °C to –42 °C. IP 16 Determination Freezing Point of Aviation Fuels
1.3 The values stated in SI units are to be regarded as
3. Terminology
standard. No other units of measurement are included in this
3.1 Definitions:
standard.
3.1.1 freezing point, n—in aviation fuels, the fuel tempera-
ture at which solid hydrocarbon crystals, formed on cooling,
1.4 This standard does not purport to address all of the
disappear when the temperature of the fuel is allowed to rise
safety concerns, if any, associated with its use. It is the
under specified conditions of test.
responsibility of the user of this standard to establish appro-
priate safety, health, and environmental practices and to
3.2 Definitions of Terms Specific to This Standard:
determine the applicability of regulatory limitations prior to
3.2.1 automatic laser method, n—the procedures of auto-
use.
matically cooling a liquid aviation fuel specimen until solid
hydrocarbon crystals appear, followed by controlled warming
1.5 This international standard was developed in accor-
and recording of temperature at which hydrocarbon crystals
dance with internationally recognized principles on standard-
completely redissolve into the liquid phase.
ization established in the Decision on Principles for the
Development of International Standards, Guides and Recom- 3.3 Symbols:
mendations issued by the World Trade Organization Technical
Cd = the specimen temperature at which the appearance of
Barriers to Trade (TBT) Committee.
the first crystals are detected in the specimen by an
optical crystal detector under specified conditions of
test.
Co = the specimen temperature at which the appearance of
opacity in the specimen is detected by an optical
opacity detector under specified conditions of test.
1
This test method is under the jurisdiction of ASTM International Committee
Do = the specimen temperature at which the disappearance
D02 on Petroleum Products, Liquid Fuels, and Lubricants and is the direct
of opacity in the specimen is detected by an optical
responsibility ofASTM Subcommittee D02.07 on Flow Properties. The technically
opacity detector under specified conditions of test.
equivalent standard as referenced is under the jurisdiction of the Energy Institute
Subcommittee SC-B-7.
Current edition approved April 1, 2022. Published April 2022. Originally
ɛ1
3
approved in 2005. Last previous edition approved in 2015 as D7153 – 15 . DOI: For referenced ASTM standards, visit the ASTM website, www.astm.org, or
10.1520/D7153-22. contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
2
This test method has been developed through the cooperative effort between Standards volume information, refer to the standard’s Document Summary page on
ASTM and the Energy Institute, London.ASTM and IPstandards were approved by the ASTM website.
4
ASTMandEItechnicalcommitteesasbeingtechnicallyequivalentbutthatdoesnot Annual Book of IP Standards Methods, Vol 1.Available from Energy Institute,
imply both standards are identical. 61 New Cavendish St., London, WIG 7AR, U.K.
*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
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D7153 − 22
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D7153 − 22
4. Summary of Test Method 6.3 The temperature measuring device in the specimen
chamber shall be capable of measuring the temperature of the
4.1 Aspecimen is cooled at a rate of 10 °C⁄min 6 5 °C⁄min
specimen from –80 °C to +20 °C at a resolution of 0.1 °C and
while continuously being illuminated by a laser light source.
a
...

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.
´1
Designation: D7153 − 15 D7153 − 22
IP 529 ⁄15⁄16
Standard Test Method for
Freezing Point of Aviation Fuels (Automatic Laser
1,2
Method)
This standard is issued under the fixed designation D7153; 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—Figures 3, A1.3, and A1.5 were corrected editorially in March 2016.
1. Scope*
1.1 This test method covers the determination of the temperature below which solid hydrocarbon crystals may form in aviation
turbine fuels.
1.2 This test method is designed to cover the temperature range of –80 °C to 20 °C; however, the interlaboratory study mentioned
in 12.4 has only demonstrated the test method with fuels having freezing points in the range of –60 °C to –42 °C.
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 safety, health, and healthenvironmental practices and to 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.
2. Referenced Documents
3
2.1 ASTM Standards:
D2386 Test Method for Freezing Point of Aviation Fuels
D4057 Practice for Manual Sampling of Petroleum and Petroleum Products
D4177 Practice for Automatic Sampling of Petroleum and Petroleum Products
2.2 Energy Institute Standard:
4
IP 16 Determination Freezing Point of Aviation Fuels
1
This test method is under the jurisdiction of ASTM International Committee D02 on Petroleum Products, Liquid Fuels, and Lubricants and is the direct responsibility
of ASTM Subcommittee D02.07 on Flow Properties. The technically equivalent standard as referenced is under the jurisdiction of the Energy Institute Subcommittee SC-B-7.
Current edition approved April 1, 2015April 1, 2022. Published April 2015April 2022. Originally approved in 2005. Last previous edition approved in 20102015 as
ɛ1
D7153 – 05 (2010).D7153 – 15 . DOI: 10.1520/D7153-15E01.10.1520/D7153-22.
2
This test method has been developed through the cooperative effort between ASTM and the Energy Institute, London. ASTM and IP standards were approved by ASTM
and EI technical committees as being technically equivalent but that does not imply both standards are identical.
3
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
4
Annual Book of IP Standards Methods, Vol 1. Available from Energy Institute, 61 New Cavendish St., London, WIG 7AR, U.K.
*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

---------------------- Page: 1 ----------------------
D7153 − 22
3. Terminology
3.1 Definitions:
3.1.1 freezing point, n—in aviation fuels, the fuel temperature at which solid hydrocarbon crystals, formed on cooling, disappear
when the temperature of the fuel is allowed to rise under specified conditions of test.
3.2 Definitions of Terms Specific to This Standard:
3.2.1 automatic laser method, n—the procedures of automatically cooling a liquid aviation fuel specimen until solid hydrocarbon
crystals appear, followed by controlled warming and recording of temperature at which hydrocarbon crystals completely redissolve
into the liquid phase.
3.3 Symbols:
Cd = the specimen temperature at which the appearance of the first crystals are detected in the specimen by an optical crystal
detector under specified conditions of test.
Co = the specimen temperature at which the appearance of opacity in the specimen is detected by an optical opacity detector
under specified conditions of test.
Do = the specimen temperature at which the disappearance of opacity in the specimen is detected by a
...