ASTM D5348-95(2001)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn. Contact ASTM
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Designation: D 5348 – 95 (Reapproved 2001)
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 D 5348; 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 be interchangeable ground joints.The trap serves to collect and
measure the condensed water and to return the solvent to the
1.1 This test method covers the determination of water
flask.Asuitable assembly of the apparatus is illustrated in Fig.
existing in a sample of sulfonated or sulfated oil, or both, by
1.
distilling the sample with a volatile solvent. The test method is
4.1.1 Flask, 500-mL, of either the short-neck, round-bottom
applicable only to sulfonated and sulfated oils that do not
type or the Erlenmeyer type.
containthefollowing:mineralacids,freesulfonicacids,orfree
4.1.2 Heat Source—The source of heat may be either an oil
sulfuric acid esters; or alkali hydroxides, carbonates or ac-
bath (stearic acid, paraffin wax, etc.), or an electric heater
etates: or alcohol, glycerin, diethylene glycol, acetone, or other
provided with a sliding rheostat or other means of heat control.
water-miscible volatile compounds. This test method was
4.1.3 Condenser, a water-cooled glass reflux condenser
derived from Test Methods D 500, Sections 4 through 9.
(Fig. 1), having a jacket approximately 400 mm (15 ⁄4 in.) in
1.2 The values stated in SI units are to be regarded as the
3 1
length with an inner tube 9.5 to 12.7 mm ( ⁄8 to ⁄2 in.) in
standard. The values given in parentheses are provided for
outside diameter.The end of the condenser to be inserted in the
information only.
trap shall be ground off at an angle of 30° from the vertical axis
1.3 This standard does not purport to address all of the
of the condenser. When inserted into the trap, the tip of the
safety concerns, if any, associated with its use. It is the
condenser shall be about 7 mm ( ⁄4 in.) above the surface of the
responsibility of the user of this standard to establish appro-
liquid in the trap after the distillation conditions have been
priate safety and health practices and determine the applica-
established. Fig. 1 shows a conventional sealed-in type of
bility of regulatory limitations prior to use.
condenser, but any other condenser fulfilling the detailed
2. Referenced Documents requirements above may be used.
4.1.4 Trap, a trap made of well-annealed glass constructed
2.1 ASTM Standards:
in accordance with Fig. 1 and graduated as shown to contain 5
D 500 Test Methods of Chemical Analysis of Sulfonated
mL at 20°C. It shall be subdivided into 0.1-mL divisions, with
and Sulfated Oils
each 1-mL line numbered (5 mL at top). The error in any
3. Significance and Use
indicated capacity may not be greater than 0.05 mL.
3.1 This test method is intended to determine the moisture
5. Purity of Reagents
content of fats, oils, and fatliquors used in the softening and
5.1 Purity of Reagents—Reagent grade chemicals shall be
stuffing of leather. The moisture content is measured for the
used in all tests. Unless otherwise indicated, it is intended that
purpose of quality assurance.
all reagents shall conform to the specifications of the Commit-
4. Apparatus
tee onAnalytical Reagents of theAmerican Chemical Society.
4.1 The apparatus required consists of a glass flask heated
6. Reagents
by suitable means and provided with a reflux condenser
6.1 Oleic Acid, heated previous to use for 5 to 10 min over
discharging into a trap and connected to the flask. The
a free flame at a temperature of 130 to 135°C.
connections between the trap and the condenser and flask shall
6.2 Xylene.
This test method is under the jurisdiction ofASTM Committee D31 on Leather
and is the direct responsibility of Subcommittee D31.08 on Fats and Oils. This test Reagent Chemicals, American Chemical Society Specifications, American
method was developed in cooperation with the American Leather Chemists Assn. Chemical Society, Washington, DC. For suggestions on the testing of reagents not
(Method H 40-1957). listed by the American Chemical Society, see Analar Standards for Laboratory
Current edition approved May 15, 1995. Published July 1995. Originally Chemicals, BDH Ltd., Poole, Dorset, U.K., and the United States Pharmacopeia
published as D 5348 – 93. Last previous edition D 5348 – 93. and National Formulary, U.S. Pharmaceutical Convention, Inc. (USPC), Rockville,
Annual Book of ASTM Standards, Vol 15.04. MD.
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn. Contact ASTM
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