ASTM D5348-95(2006)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
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Designation: D5348 – 95 (Reapproved 2006)
Standard Test Method for
Determination of the Moisture Content of Sulfonated and
Sulfated Oils by Distillation with Xylene
This standard is issued under the fixed designation D5348; 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 discharging into a trap and connected to the flask. The
connections between the trap and the condenser and flask shall
1.1 This test method covers the determination of water
be interchangeable ground joints.The trap serves to collect and
existing in a sample of sulfonated or sulfated oil, or both, by
measure the condensed water and to return the solvent to the
distilling the sample with a volatile solvent. The test method is
flask.Asuitable assembly of the apparatus is illustrated in Fig.
applicable only to sulfonated and sulfated oils that do not
1.
containthefollowing:mineralacids,freesulfonicacids,orfree
4.1.1 Flask, 500-mL, of either the short-neck, round-bottom
sulfuric acid esters; or alkali hydroxides, carbonates or ac-
type or the Erlenmeyer type.
etates: or alcohol, glycerin, diethylene glycol, acetone, or other
4.1.2 Heat Source—The source of heat may be either an oil
water-miscible volatile compounds. This test method was
bath (stearic acid, paraffin wax, etc.), or an electric heater
derived from Test Methods D500, Sections 4 through 9.
provided with a sliding rheostat or other means of heat control.
1.2 The values stated in SI units are to be regarded as the
4.1.3 Condenser, a water-cooled glass reflux condenser
standard. The values given in parentheses are provided for
(Fig. 1), having a jacket approximately 400 mm (15 ⁄4 in.) in
information only.
3 1
length with an inner tube 9.5 to 12.7 mm ( ⁄8 to ⁄2 in.) in
1.3 This standard does not purport to address all of the
outside diameter.The end of the condenser to be inserted in the
safety concerns, if any, associated with its use. It is the
trap shall be ground off at an angle of 30° from the vertical axis
responsibility of the user of this standard to establish appro-
of the condenser. When inserted into the trap, the tip of the
priate safety and health practices and determine the applica-
condenser shall be about 7 mm ( ⁄4 in.) above the surface of the
bility of regulatory limitations prior to use.
liquid in the trap after the distillation conditions have been
2. Referenced Documents established. Fig. 1 shows a conventional sealed-in type of
condenser, but any other condenser fulfilling the detailed
2.1 ASTM Standards:
requirements above may be used.
D500 TestMethodsofChemicalAnalysisofSulfonatedand
4.1.4 Trap, a trap made of well-annealed glass constructed
Sulfated Oils
in accordance with Fig. 1 and graduated as shown to contain 5
3. Significance and Use
mL at 20°C. It shall be subdivided into 0.1-mL divisions, with
each 1-mL line numbered (5 mL at top). The error in any
3.1 This test method is intended to determine the moisture
indicated capacity may not be greater than 0.05 mL.
content of fats, oils, and fatliquors used in the softening and
stuffing of leather. The moisture content is measured for the
5. Purity of Reagents
purpose of quality assurance.
5.1 Purity of Reagents—Reagent grade chemicals shall be
4. Apparatus
used in all tests. Unless otherwise indicated, it is intended that
all reagents shall conform to the specifications of the Commit-
4.1 The apparatus required consists of a glass flask heated
tee onAnalytical Reagents of theAmerican Chemical Society.
by suitable means and provided with a reflux condenser
6. Reagents
This test method is under the jurisdiction ofASTM Committee D31 on Leather
6.1 Oleic Acid, heated previous to use for 5 to 10 min over
and is the direct responsibility of Subcommittee D31.08 on Fats and Oils. This test
a free flame at a temperature of 130 to 135°C.
method was developed in cooperation with the American Leather Chemists Assn.
(Method H 40-1957).
Current edition approved April 1, 2006. Published April 2006. Originally
approved in 1993. Last previous edition approved in 2001 as D5348 – 95(2001). Reagent Chemicals, American Chemical Society Specifications, American
DOI: 10.1520/D5348-95R06. Chemical Society, Washington, DC. For suggestions on the testing of reagents not
For referenced ASTM standards, visit the ASTM website, www.astm.org, or listed by the American Chemical Society, see Analar Standards for Laboratory
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Chemicals, BDH Ltd., Poole, Dorset, U.K., and the United States Pharmacopeia
Standards volume information, refer to the standard’s Document Summary page on and National Formulary, U.S. Pharmacopeial Convention, Inc. (USPC), Rockville,
the ASTM website. MD.
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