ASTM D5772-17
(Test Method)Standard Test Method for Cloud Point of Petroleum Products and Liquid Fuels (Linear Cooling Rate Method)
Standard Test Method for Cloud Point of Petroleum Products and Liquid Fuels (Linear Cooling Rate Method)
SIGNIFICANCE AND USE
5.1 For petroleum products and diesel fuels, the cloud point is an index of the lowest temperature of its utility for certain applications. Wax crystals of sufficient quantity can plug filters used in some fuel systems.
5.2 Petroleum blending operations require precise measurement of the cloud point.
5.3 This test method can determine the temperature of the test specimen at which wax crystals have formed sufficiently to be observed as a cloud, with a resolution of 0.1 °C.
5.4 This test method provides results that when rounded to the next lower integer are equivalent to Test Method D2500.
5.5 This test method is more precise than Test Method D2500.
SCOPE
1.1 This test method covers the description of the determination of the cloud point of petroleum products and biodiesel fuels that are transparent in layers 40 mm in thickness by an automatic instrument using a linear cooling rate.
1.2 This test method covers the range of temperatures from −60 °C to 49 °C with temperature resolution of 0.1 °C, however, the range of temperatures included in the 1997 interlaboratory cooperative test program only covered the temperature range of –56 °C to +34 °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 and health 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.
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Designation: D5772 − 17
Designation: IP 445/09
Standard Test Method for
Cloud Point of Petroleum Products and Liquid Fuels (Linear
1
Cooling Rate Method)
This standard is issued under the fixed designation D5772; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
INTRODUCTION
This test method describes an alternative procedure for the determination of cloud point of
petroleum products of Test Method D2500/IP 219 using an automatic apparatus. The temperature
results from this test method have been found to be equivalent to Test Method D2500/IP 219. When
specification requires Test Method D2500/IP 219, do not substitute this test method or any other
method without obtaining comparative data and agreement from the specifier.
1. Scope* 2. Referenced Documents
2
2.1 ASTM Standards:
1.1 This test method covers the description of the determi-
D2500Test Method for Cloud Point of Petroleum Products
nation of the cloud point of petroleum products and biodiesel
and Liquid Fuels
fuels that are transparent in layers 40mm in thickness by an
D4057Practice for Manual Sampling of Petroleum and
automatic instrument using a linear cooling rate.
Petroleum Products
1.2 This test method covers the range of temperatures from
D4177Practice for Automatic Sampling of Petroleum and
−60°C to 49°C with temperature resolution of 0.1°C,
Petroleum Products
however, the range of temperatures included in the 1997
2.2 Energy Institute Standard:
interlaboratory cooperative test program only covered the
3
IP219Test Method for Cloud Point of Petroleum Products
temperature range of –56°C to +34°C.
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 biodiesel, n—afuelcomprisedofmono-alkylestersof
1.4 This standard does not purport to address all of the
long-chain fatty acids derived from vegetable oils or animal
safety concerns, if any, associated with its use. It is the
fats, designated B100.
responsibility of the user of this standard to establish appro-
3.1.1.1 Discussion—Biodiesel is typically produced by a
priate safety and health practices and determine the applica-
reaction of vegetable oil or animal fat with an alcohol such as
bility of regulatory limitations prior to use.
methanol or ethanol in the presence of a catalyst to yield
1.5 This international standard was developed in accor- mono-estersandglycerin.Thefueltypicallymaycontainupto
14differenttypesoffattyacidsthatarechemicallytransformed
dance with internationally recognized principles on standard-
ization established in the Decision on Principles for the into fatty acid methyl esters (FAME).
Development of International Standards, Guides and Recom-
3.1.2 biodiesel blend, n—a blend of biodiesel fuel with
mendations issued by the World Trade Organization Technical
petroleum-based diesel fuel designated BXX, where XX is the
Barriers to Trade (TBT) Committee.
volume percentage of biodiesel.
1 2
This test method is under the jurisdiction of ASTM Committee D02 on For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Petroleum Products, Liquid Fuels, and Lubricants and is the direct responsibility of contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Subcommittee D02.07 on Flow Properties. Standards volume information, refer to the standard’s Document Summary page on
Current edition approved May 1, 2017. Published May 2017. Originally the ASTM website.
3
approved in 1995. Last previous edition approved in 2015 as D5772–15. DOI: Available from Energy Institute, 61 New Cavendish St., London, WIG 7AR,
10.1520/D5772-17. U.K., http://www.energyinst.org.uk.
*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 ----------------------
D5772 − 17
3.1.3 cloud point, n—in petroleum products and biodiesel lization of the wax in the specimen is detected by the optical
fuels, the temperature of a liquid specimen when the smallest barrier, is recorded with a resolution of 0.1°C. The specimen
observable cluster of wax crystals first occurs upon cooling is then heated to the original starting temperature.
under prescribed conditions.
3.1.3.1 Discussion—The cloud point occurs when the tem-
5. Significance and Use
perature of the specimen is low enough to cause wax crystals
5.1 For petroleum products and diesel fuels, the cloud point
to precipitate. In a homogeneous liquid, the cloud is always
...
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: D5772 − 15 D5772 − 17
Designation: IP 445/09
Standard Test Method for
Cloud Point of Petroleum Products and Liquid Fuels (Linear
1
Cooling Rate Method)
This standard is issued under the fixed designation D5772; 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.
INTRODUCTION
This test method describes an alternative procedure for the determination of cloud point of
petroleum products of Test Method D2500/IP 219 using an automatic apparatus. The temperature
results from this test method have been found to be equivalent to Test Method D2500/IP 219. When
specification requires Test Method D2500/IP 219, do not substitute this test method or any other
method without obtaining comparative data and agreement from the specifier.
1. Scope*
1.1 This test method covers the description of the determination of the cloud point of petroleum products and biodiesel fuels
that are transparent in layers 40 mm in thickness by an automatic instrument using a linear cooling rate.
1.2 This test method covers the range of temperatures from −60 °C to 49 °C with temperature resolution of 0.1 °C, however,
the range of temperatures included in the 1997 interlaboratory cooperative test program only covered the temperature range of
–56 °C to +34 °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 and health 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.
2. Referenced Documents
2
2.1 ASTM Standards:
D2500 Test Method for Cloud Point of Petroleum Products and Liquid 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:
3
IP 219 Test Method for Cloud Point of Petroleum Products
3. Terminology
3.1 Definitions:
1
This test method is under the jurisdiction of ASTM Committee D02 on Petroleum Products, Liquid Fuels, and Lubricants and is the direct responsibility of Subcommittee
D02.07 on Flow Properties.
Current edition approved April 1, 2015May 1, 2017. Published April 2015May 2017. Originally approved in 1995. Last previous edition approved in 20102015 as
D5772 – 10.D5772 – 15. DOI: 10.1520/D5772-15.10.1520/D5772-17.
2
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 Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
3
Available from Energy Institute, 61 New Cavendish St., London, WIG 7AR, U.K., http://www.energyinst.org.uk.
*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 ----------------------
D5772 − 17
3.1.1 biodiesel, n—a fuel comprised of mono-alkyl esters of long-chain fatty acids derived from vegetable oils or animal fats,
designated B100.
3.1.1.1 Discussion—
Biodiesel is typically produced by a reaction of vegetable oil or animal fat with an alcohol such as methanol or ethanol in the
presence of a catalyst to yield-mono-esters yield mono-esters and glycerin. The fuel typically may contain up to 14 different types
of fatty acids that are chemically transformed into fatty acid methyl esters (FAME).
3.1.2 biodiesel blend, n—a blend of biodiesel fuel with petroleum-based diesel fuel designated BXX, where XX is the volume
percentage of biodiesel.
3.1.3 cloud point, n—in petroleum products and biodiesel fuels, the temperature of a liquid specimen when the smallest
observable cluster of hydrocarbonwax crystals first occurs upon cooling under prescribed conditions.
3.1.3.1 Discussion—
The cloud point o
...
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