ASTM D5773-07

This document is not anASTM standard and is intended only to provide the user of anASTM 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.
An American National Standard
Designation:D5773–05 Designation: D 5773 – 07
Designation: 446/99
Standard Test Method for
Cloud Point of Petroleum Products (Constant Cooling Rate
1
Method)
This standard is issued under the fixed designation D5773; 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 (e) 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
petroleumproductsTestMethodD2500/IP219usinganautomaticapparatus.Thetemperatureresults
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 describescovers 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 constant cooling rate.
1.2 This test method covers the range of temperatures from −60 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 to
+34°C.
1.3 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
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.
2. Referenced Documents
2
2.1 ASTM Standards:
D2500 Test Method for Cloud Point of Petroleum Products
D4057 Practice for Manual Sampling of Petroleum and Petroleum Products
D4177 Practice for Automatic Sampling of Petroleum and Petroleum Products
3
2.2 Energy Institute Standard:
IP 219 Test Method for Cloud Point of Petroleum Products
3. Terminology
3.1 Definitions:
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 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).
1
This test method is under the jurisdiction ofASTM Committee D02 on Petroleum Products and Lubricants and is the direct responsibility of Subcommittee D02.07 on
Flow Properties.
Current edition approved June 15, 2005. Published July 2005. Originally approved in 1995. Last previous edition approved in 2004 as D5773–04.
Current edition approved Dec. 1, 2007. Published January 2008. Originally approved in 1995. Last previous edition approved in 2005 as D5773–05.
2
ForreferencedASTMstandards,visittheASTMwebsite,www.astm.org,orcontactASTMCustomerServiceatservice@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 the Energy Institute, 61 New Cavendish Street, London, England WIM 8AR.
*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 ----------------------
D5773–07
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 hydrocarbon crystals first occurs upon cooling under prescribed conditions.
3.1.3.1 Discussion—Thecloudpointoccurswhenthetemperatureofthespecimenislowenoughtocausehydrocarboncrystals
to precipitate. In a homogeneous liquid, the cloud is always noted first at the location in the specimen where the specimen
temperature is the lowest. The cloud point is the temperature at which the crystals first occur, regardless of their location in the
specimen, and not after extensive
...

This document is not anASTM standard and is intended only to provide the user of anASTM 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.
An American National Standard
Designation:D5773–05 Designation: D 5773 – 07
Designation: 446/99
Standard Test Method for
Cloud Point of Petroleum Products (Constant Cooling Rate
1
Method)
This standard is issued under the fixed designation D5773; 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
petroleumproductsTestMethodD2500/IP219usinganautomaticapparatus.Thetemperatureresults
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 describescovers 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 constant cooling rate.
1.2 This test method covers the range of temperatures from −60 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 to
+34°C.
1.3 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
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.
2. Referenced Documents
2
2.1 ASTM Standards:
D2500 Test Method for Cloud Point of Petroleum Products
D4057 Practice for Manual Sampling of Petroleum and Petroleum Products
D4177 Practice for Automatic Sampling of Petroleum and Petroleum Products
3
2.2 Energy Institute Standard:
IP 219 Test Method for Cloud Point of Petroleum Products
3. Terminology
3.1 Definitions:
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 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).
1
This test method is under the jurisdiction ofASTM Committee D02 on Petroleum Products and Lubricants and is the direct responsibility of Subcommittee D02.07 on
Flow Properties.
Current edition approved June 15, 2005. Published July 2005. Originally approved in 1995. Last previous edition approved in 2004 as D5773–04.
Current edition approved Dec. 1, 2007. Published January 2008. Originally approved in 1995. Last previous edition approved in 2005 as D5773–05.
2
ForreferencedASTMstandards,visittheASTMwebsite,www.astm.org,orcontactASTMCustomerServiceatservice@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 the Energy Institute, 61 New Cavendish Street, London, England WIM 8AR.
*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 ----------------------
D5773–07
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 hydrocarbon crystals first occurs upon cooling under prescribed conditions.
3.1.3.1 Discussion—Thecloudpointoccurswhenthetemperatureofthespecimenislowenoughtocausehydrocarboncrystals
to precipitate. In a homogeneous liquid, the cloud is always noted first at the location in the specimen where the specimen
temperature is the lowest. The cloud point is the temperature at which the crystals first occur, regardless of their location in the
specimen, and not after extensive c
...