Standard Test Methods for Fatty Acids Content of Naval Stores, Including Rosin, Tall Oil, and Related Products

SIGNIFICANCE AND USE
These test methods are designed to broaden the scope of the previous edition of these test methods by the inclusion of tall oil as a test material. Test Methods D 803 currently includes methods for the determination of the rosin acid and fatty acid content of crude tall oil. Test Methods D 803 references Test Method D 1585.
Rosin and tall oil are composed primarily of rosin acids and fatty acids, and the measurement of these components is important in establishing the composition of these materials.
SCOPE
1.1 These test methods cover the determination of the fatty acids of naval stores, including rosin, tall oil, and related products.
1.2 These test methods may not be applicable to adducts or derivatives of rosin or other naval stores products.
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.

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Publication Date
31-Oct-2006
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ASTM D1585-96(2006) - Standard Test Methods for Fatty Acids Content of Naval Stores, Including Rosin, Tall Oil, and Related Products
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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:D1585–96(Reapproved2006)
Standard Test Methods for
Fatty Acids Content of Naval Stores, Including Rosin, Tall
Oil, and Related Products
This standard is issued under the fixed designation D1585; 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 tor Wolfe Method described in Test Methods D1240. Rosin
acids are calculated as abietic acid.
1.1 These test methods cover the determination of the fatty
3.2 The acid number is determined by either the potentio-
acids of naval stores, including rosin, tall oil, and related
metric or the indicator method in accordance with Test Meth-
products.
ods D465.
1.2 These test methods may not be applicable to adducts or
3.3 The unsaponifiable matter is determined in accordance
derivatives of rosin or other naval stores products.
with the methods described in Test Method D1065.
1.3 This standard does not purport to address all of the
3.4 The fatty acids are calculated by two methods.
safety concerns, if any, associated with its use. It is the
3.4.1 For materials with a fatty acid content less than 5 %,
responsibility of the user of this standard to establish appro-
fatty acid content is calculated from the rosin acids content and
priate safety and health practices and determine the applica-
the acid number.
bility of regulatory limitations prior to use.
3.4.2 For materials with a fatty acid content greater than
2. Referenced Documents
5 %, fatty acid content is calculated from the rosin acids and
unsaponifiables content.
2.1 ASTM Standards:
3.5 The same method for end point detection, either poten-
D465 Test Methods for Acid Number of Naval Stores
tiometric or indicator, should be used for acid number, unsa-
Products Including Tall Oil and Other Related Products
ponifiables, and rosin acids content determination, in order to
D803 Test Methods for Testing Tall Oil
avoid slight variables that might occur.
D890 Test Method for Water in Liquid Naval Stores
3.6 Since the fatty acids remaining in tall oil rosin, tall oil,
D1065 Test Method for Unsaponifiable Matter in Naval
and other naval stores products consist of oleic acid with
Stores, Including Rosin, Tall Oil, and Related Products
varyingamountsofothersaturatedandunsaturatedacids,ithas
D1240 Test Methods for Rosin Acids Content of Naval
becomecustomarytocalculateandreportthefattyacidcontent
Stores, Including Rosin, Tall Oil, and Related Products
as oleic acid.
E177 Practice for Use of the Terms Precision and Bias in
ASTM Test Methods
4. Significance and Use
E691 Practice for Conducting an Interlaboratory Study to
4.1 These test methods are designed to broaden the scope of
Determine the Precision of a Test Method
the previous edition of these test methods by the inclusion of
3. Summary of Test Methods tall oil as a test material.Test Methods D803 currently includes
methods for the determination of the rosin acid and fatty acid
3.1 The rosin acids content is determined using either the
content of crude tall oil. Test Methods D803 references Test
modified potentiometric Wolfe Method or the modified indica-
Method D1585.
4.2 Rosin and tall oil are composed primarily of rosin acids
These test methods are under the jurisdiction of ASTM Committee D01 on
and fatty acids, and the measurement of these components is
Paint and Related Coatings, Materials, and Applications and are the direct
important in establishing the composition of these materials.
responsibility of Subcommittee D01.34 on Naval Stores.
Current edition approved Nov. 1, 2006. Published November 2006. Originally
5. Purity of Reagents
approved in 1958. Last previous edition approved in 2003 as D1585 – 96 (2003).
DOI: 10.1520/D1585-96R06.
5.1 Reagent grade chemicals shall be used in all tests.
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Unless otherwise indicated, it is intended that all reagents shall
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
conform to the specifications of the Committee on Analytical
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.
D1585–96 (2006)
Reagents of the American Chemical Society, where such Fatty acids as oleic acid, % 5 [A 2 ~R 3 1.855!#/1.986 (1)
specifications are available. Other grades may be used, pro-
where:
vided it is first ascertained that the reagent is of sufficiently
A = acid number of original sample,
high purity to permit its use without lessening the accuracy of
R = rosin acids, %,
the determination.
1.855 = (56.1 3 1000)/(302.4 3 100) (factor to convert
5.2 Unless otherwise indicated, references to water shall be
th
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