ASTM D1240-24
(Test Method)Standard Test Methods for Rosin Acids Content of Pine Chemicals, Including Rosin, Tall Oil, and Related Products
Standard Test Methods for Rosin Acids Content of Pine Chemicals, Including Rosin, Tall Oil, and Related Products
SIGNIFICANCE AND USE
4.1 This is a revision of the method for measuring rosin acids content combines the three major ways of determining the rosin acids content of pine chemicals products into a single method.
4.1.1 For materials containing less than 15 % rosin, the modified Glidden procedure has gained acceptance. For materials containing more than 15 % rosin the modified Wolfe Method is preferred. The modified Wolfe and modified Glidden procedures differ only in their details. They have been combined here into a single procedure. This procedure can be run using either a potentiometer or an internal indicator to determine the end point of the titration. Use of a potentiometer is preferred and is the referee method. Use of an internal indicator is the principal alternative method. They will be referred to as the Potentiometric Method and the Internal Indicator Method.
SCOPE
1.1 These test methods cover the determination of rosin acids in tall oil, tall oil fatty acid, tall oil rosin, and other pine chemicals products.
1.2 These test methods may not be applicable to adducts or derivatives of rosin, fatty acid, or other pine chemicals products.
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, 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.
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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: D1240 − 24
Standard Test Methods for
Rosin Acids Content of Pine Chemicals, Including Rosin,
1
Tall Oil, and Related Products
This standard is issued under the fixed designation D1240; 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 ASTM Test Methods
E691 Practice for Conducting an Interlaboratory Study to
1.1 These test methods cover the determination of rosin
Determine the Precision of a Test Method
acids in tall oil, tall oil fatty acid, tall oil rosin, and other pine
chemicals products.
3. Summary of Test Method
1.2 These test methods may not be applicable to adducts or
3.1 The rosin acids content is determined by one of two
derivatives of rosin, fatty acid, or other pine chemicals prod-
procedures; by selective esterification of fatty acids to form
ucts.
methyl esters followed by titration of the unreacted rosin acids,
1.3 The values stated in SI units are to be regarded as the
by selective esterification of fatty acids to form methyl esters
standard. The values given in parentheses are for information
followed by titration of the unreacted rosin acids.
only.
4. Significance and Use
1.4 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the
4.1 This is a revision of the method for measuring rosin
responsibility of the user of this standard to establish appro-
acids content combines the three major ways of determining
priate safety, health, and environmental practices and deter-
the rosin acids content of pine chemicals products into a single
mine the applicability of regulatory limitations prior to use.
method.
1.5 This international standard was developed in accor-
4.1.1 For materials containing less than 15 % rosin, the
dance with internationally recognized principles on standard-
modified Glidden procedure has gained acceptance. For mate-
ization established in the Decision on Principles for the
rials containing more than 15 % rosin the modified Wolfe
Development of International Standards, Guides and Recom-
Method is preferred. The modified Wolfe and modified Glidden
mendations issued by the World Trade Organization Technical
procedures differ only in their details. They have been com-
Barriers to Trade (TBT) Committee.
bined here into a single procedure. This procedure can be run
using either a potentiometer or an internal indicator to deter-
2. Referenced Documents
mine the end point of the titration. Use of a potentiometer is
2
2.1 ASTM Standards:
preferred and is the referee method. Use of an internal indicator
D664 Test Method for Acid Number of Petroleum Products
is the principal alternative method. They will be referred to as
by Potentiometric Titration
the Potentiometric Method and the Internal Indicator Method.
D7795 Test Method for Acidity in Ethanol and Ethanol
Blends by Titration
5. Reagents
E70 Test Method for pH of Aqueous Solutions With the
5.1 Purity of Reagents—Reagent grade chemicals shall be
Glass Electrode
used in all tests. Unless otherwise indicated, it is intended that
E177 Practice for Use of the Terms Precision and Bias in
all reagents shall conform to the specifications of the Commit-
tee on Analytical Reagents of the American Chemical Society
3
1 where such specifications are available. Other grades may be
These test methods are under the jurisdiction of ASTM Committee D01 on
Paint and Related Coatings, Materials, and Applications and are the direct used, provided it is first ascertained that the reagent is of
responsibility of Subcommittee D01.34 on Pine Chemicals and Hydrocarbon
Resins.
Current edition approved Feb. 1, 2024. Published February 2024. Originally
3
approved in 1952. Last previous edition approved in 2018 as D1240 – 14 (2018). ACS Reagent Chemicals, Specifications and Procedures for Reagents and
DOI: 10.1520/D1240-24. Standard-Grade Reference Materials, American Chemical Society, Washington,
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or DC. For suggestions on the testing of reagents not listed by the American Chemical
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Society, see Analar Standards for Laboratory Chemicals, BDH Ltd., Poole, Dorset,
Standards volume information, refer to the standard’s Document Summary page on U.K., and the United States Pharmacopeia and National Formulary, U.S. Pharma-
the ASTM website. copeial Convention, Inc. (USPC), Rockville, MD.
Copyright
...
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: D1240 − 14 (Reapproved 2018) D1240 − 24
Standard Test Methods for
Rosin Acids Content of Pine Chemicals, Including Rosin,
1
Tall Oil, and Related Products
This standard is issued under the fixed designation D1240; 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 These test methods cover the determination of rosin acids in tall oil, tall oil fatty acid, tall oil rosin, and other pine chemicals
products.
1.2 These test methods may not be applicable to adducts or derivatives of rosin, fatty acid, or other pine chemicals products.
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, 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.
2. Referenced Documents
2
2.1 ASTM Standards:
D1585D664 Test Methods for Fatty Acids Content of Pine Chemicals, Including Rosin, Tall Oil, and Related ProductsMethod
for Acid Number of Petroleum Products by Potentiometric Titration
D7795 Test Method for Acidity in Ethanol and Ethanol Blends by Titration
E70 Test Method for pH of Aqueous Solutions With the Glass Electrode
E177 Practice for Use of the Terms Precision and Bias in ASTM Test Methods
E691 Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method
3. Summary of Test Method
3.1 The rosin acids content is determined by one of two procedures; by selective esterification of fatty acids to form methyl esters
followed by titration of the unreacted rosin acids, by selective esterification of fatty acids to form butylmethyl esters followed by
titration of the unreacted rosin acids.
1
These test methods are under the jurisdiction of ASTM Committee D01 on Paint and Related Coatings, Materials, and Applications and are the direct responsibility of
Subcommittee D01.34 on Pine Chemicals and Hydrocarbon Resins.
Current edition approved June 1, 2018Feb. 1, 2024. Published June 2018February 2024. Originally approved in 1952. Last previous edition approved in 20142018 as
D1240 – 14.D1240 – 14 (2018). DOI: 10.1520/D1240-14R18.10.1520/D1240-24.
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.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
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D1240 − 24
4. Significance and Use
4.1 This is a revision of the method for measuring rosin acids content combines the three major ways of determining the rosin
acids content of pine chemicals products into a single method.
4.1.1 For materials containing less than 15 % rosin, the modified Glidden procedure has gained acceptance. For materials
containing more than 15 % rosin the modified Wolfe Method is preferred. The modified Wolfe and modified Glidden procedures
differ only in their details. They have been combined here into a single procedure. This procedure can be run using either a
potentiometer or an internal indicator to determine the end point of the titration. Use of a potentiometer is preferred and is the
referee method. Use of an internal indicator is the principal alternative method. They will be referred to as the Potentiometric
Method and the Internal Indicator Method.
5. Reagents
5.1 Purity of Reagents—Reagent grade chemicals shall be used in all tests. Unless otherwise indicated, it is intended that all
reagents shall conform to the specifications of the Committee on Analytical Reagents of the American Chemical Society where
3
such specifications are available. Other grades may be used, provided it is firs
...
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