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

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.
1.3 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-Dec-1995
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ASTM D1585-96 - 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NOTICE: This standard has either been superceded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
Designation: D 1585 – 96
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 D 1585; 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 (e) indicates an editorial change since the last revision or reapproval.
1. Scope 3.4 The fatty acids are calculated by two methods.
3.4.1 For materials with a fatty acid content less than 5 %,
1.1 These test methods cover the determination of the fatty
fatty acid content is calculated from the rosin acids content and
acids of naval stores, including rosin, tall oil, and related
the acid number.
products.
3.4.2 For materials with a fatty acid content greater than
1.2 These test methods may not be applicable to adducts or
5 %, fatty acid content is calculated from the rosin acids and
derivatives of rosin or other naval stores products.
unsaponifiables content.
1.3 This standard does not purport to address all of the
3.5 The same method for end point detection, either poten-
safety concerns, if any, associated with its use. It is the
tiometric or indicator, should be used for acid number, unsa-
responsibility of the user of this standard to establish appro-
ponifiables, and rosin acids content determination, in order to
priate safety and health practices and determine the applica-
avoid slight variables that might occur.
bility of regulatory limitations prior to use.
3.6 Since the fatty acids remaining in tall oil rosin, tall oil,
2. Referenced Documents
and other naval stores products consist of oleic acid with
varying amounts of other saturated and unsaturated acids, it has
2.1 ASTM Standards:
become customary to calculate and report the fatty acid content
D 465 Test Methods for Acid Number of Naval Stores
as oleic acid.
Products Including Tall Oil and Other Related Products
D 803 Test Methods for Testing Tall Oil
4. Significance and Use
D 890 Test Method for Water in Liquid Naval Stores
4.1 These test methods are designed to broaden the scope of
D 1065 Test Methods for Unsaponifiable Matter in Naval
the previous edition of these test methods by the inclusion of
Stores, Including Rosin, Tall Oil, and Related Products
tall oil as a test material. Test Methods D 803 currently
D 1240 Test Methods for Rosin Acids Content of Naval
includes methods for the determination of the rosin acid and
Stores Including Rosin, Tall Oil, and Related Products
fatty acid content of crude tall oil. Test Methods D 803
E 177 Practice for the Use of the Terms Precision and Bias
references Test Method D 1585.
in ASTM Test Methods
4.2 Rosin and tall oil are composed primarily of rosin acids
E 691 Practice for Conducting an Interlaboratory Study to
and fatty acids, and the measurement of these components is
Determine the Precision of a Test Method
important in establishing the composition of these materials.
3. Summary of Test Methods
5. Purity of Reagents
3.1 The rosin acids content is determined using either the
5.1 Reagent grade chemicals shall be used in all tests.
modified potentiometric Wolfe Method or the modified indica-
Unless otherwise indicated, it is intended that all reagents shall
tor Wolfe Method described in Test Methods D 1240. Rosin
conform to the specifications of the Committee on Analytical
acids are calculated as abietic acid.
Reagents of the American Chemical Society, where such
3.2 The acid number is determined by either the potentio-
specifications are available. Other grades may be used, pro-
metric or the indicator method in accordance with Test Meth-
vided it is first ascertained that the reagent is of sufficiently
ods D 465.
high purity to permit its use without lessening the accuracy of
3.3 The unsaponifiable matter is determined in accordance
the determination.
with the methods described in Test Methods D 1065.
5.2 Unless otherwise indicated, references to water shall be
These test methods are under the jurisdiction of ASTM Committee D-1 on Paint
and Related Coatings, Materials, and Applications and are the direct responsibility Reagent Chemicals, American Chemical Society Specifications, American
of Subcommittee D01.34 on Naval Stores. Chemical Society, Washington, DC. For suggestions on the testing of reagents not
Current edition approved Jan. 10, 1996. Published March 1996. Originally listed by the American Chemical Society, see Analar Standards for Laboratory
published as D 1585 – 58T. Last previous edition D 1585 – 93. Chemicals, BDH Ltd., Poole, Dorset, U.K., and the United States Pharmacopeia
Annual Book of ASTM Standards, Vol 06.03. and National Formulary, U.S. Pharmaceutical Convention, Inc. (USPC), Rockville,
Annual Book of ASTM Standards, Vol 14.02. MD.
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NOTICE: This standard has either been superceded and replaced by a new ver
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