ASTM D3607-97(2002)e1

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An American National Standard
e1
Designation:D3607–97 (Reapproved 2002)
Standard Test Method for
Removing Volatile Contaminants from Used Engine Oils by
Stripping
This standard is issued under the fixed designation D 3607; 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.
e NOTE—Warning notes were editorially moved into the standard text in March 2003.
1. Scope Engine Oils by Gas Chromatography
D 4057 Practice for Manual Sampling of Petroleum and
1.1 This test method covers a standardized procedure for
Petroleum Products
removing volatile materials such as gasoline and water from
D 4175 Terminology Relating to Petroleum, Petroleum
used engine oils prior to further oil analysis.
Products, and Lubricants
1.2 It also provides an estimate of such volatiles in used
D 4177 Practice for Automatic Sampling of Petroleum and
engine oils.
Petroleum Products
1.3 When an accurate value of the gasoline contaminant is
E 1 Specification for ASTM Thermometers
required either Test Methods D 322 or D 3525 shall be used.
NOTE 1—Test Method D 322 determines the amount of gasoline by 3. Terminology
distillation with water. Test Method D 3525 determines the amount of
3.1 Definitions:
material boiling below the boiling point of n–tetradecane by gas chroma-
3.1.1 stripping, n—the process whereby volatile fractions
tography.
are removed from a liquid material.
NOTE 2—When the amount of gasoline is required to be known, the
3.1.1.1 Discussion—In this test method, lighter components
user of this test method is advised to determine which method is to be
used. There are cases where D 3525 may be set as the referee method. such as water and gasoline are removed by the application of
heat while passing an inert gas through the liquid.
1.4 The values stated in SI units are to be regarded as the
3.1.2 used oil, n—any oil that has been in a piece of
standard. The values in parentheses are for information only.
equipment (for example, an engine, gearbox, transformer, or
1.5 This standard does not purport to address all of the
turbine) whether operated or not.
safety concerns, if any, associated with its use. It is the
3.1.2.1 Discussion—This test method refers specifically to
responsibility of the user of this standard to consult and
used lubricating oils from gasoline engines.
establish appropriate safety and health practices and deter-
mine the applicability of regulatory limitations prior to use.
4. Summary of Test Method
For specific precautionary statement, see 6.1 and 8.5.
4.1 A known weight of sample is heated to 90°C under a
2. Referenced Documents nitrogen flow for 4.5 h, cooled, and reweighed.
2.1 ASTM Standards:
5. Significance and Use
D 322 Test Method for Gasoline Diluent in Used Gasoline
2 5.1 The removal of volatile materials such as gasoline
Engine Oils by Distillation
dilution from used engine oils is especially important if the
D 445 Test Method for Kinematic Viscosity of Transparent
mechanical shear stability or oxidative stability of the oil is
and Opaque Liquids (the Calculation of Dynamic Viscos-
being monitored by measuring a kinematic viscosity change in
ity)
the oil after it has been used in a gasoline engine.
D 3525 Test Method for Gasoline Diluent in Used Gasoline
6. Apparatus
6.1 Nitrogen Cylinder, equipped with regulator.
This test method is under the jurisdiction of ASTM Committee D02 on
(Warning—Using pressurized gas is hazardous.)
Petroleum Products and Lubricants and is the direct responsibility of Subcommittee
D02.06 on Analysis of Lubricants.
Current edition approved Dec. 10, 2002. Published March 2003. Originally
approved in 1977. Last previous edition approved in 1997 as D 3607–97.
Annual Book of ASTM Standards, Vol 05.02.
2 4
Annual Book of ASTM Standards, Vol 05.01. Annual Book of ASTM Standards, Vol 14.03.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
e1
D3607–97 (2002)
FIG. 1 Schematic of Test Apparatus
6.2 Rotameters or Nitrogen Flowmeters ,oneormore,each enough to rest just off the bottom of the sample tube when
capable of supplying 400 cm /min of nitrogen at atmospheric connected to the nitrogen flow assembly with the flexible
pressure. connecting tubing.
6.6 Oil Bath, with suitable cover for inserting glass sample
NOTE 3—If several rotameters are available, it is preferable to control
tubes. Rubber O-rings or rubber stoppers between the tops of
the nitrogen flow with an individual rotameter to each tube. Consistent
the tubes and the cover are convenient for steadying and
flow rates can be maintained to several tubes by one rotameter if the
nitrogen pressure is controlled in a common manifold to all tubes. positioning the tubes.
6.7 Stirring Device, for oil bath. When stripping several
6.3 Connecting Tubing, of 4.8-mm ( ⁄16 in.) inside diameter
samples at once, the use of a magnetic stirrer and stirring bar
and 7.9-mm ( ⁄16 in.) outside diameter is a convenient size.
is convenient as their use allows more room for the sample
NOTE 4—No tolerances for the dimensions of the I.D. and O.D. of the
tubes.
tubing are given because these are nominal sizes.
6.8 Thermoregulator and Heater, capable of maintaining
6.4 Sample Tubes or Test Tubes, glass, 25 by 150-mm. As
the oil bath at 90.0 6 0.2°C.
many as eight tubes can usually be handled in a typical
6.9 Thermometer, such as ASTM Medium Aniline Point
apparatus assembly (Note 3).
Thermometer having a range from 25 to 105°C and conform-
6.5 Tubing, glass, 5-mm outside diameter, 3-mm or smaller
ing to the requirements for Thermometer 34C as prescribed in
inside diameter and about 200 mm long, for nitrogen flow into
SpecificationE1.
the sample in the above tubes. This tubing should be long
NOTE 5—Atypical schematic arrangement of the apparatus is shown in
Fig. 1.
7. Sampling
The sole source of supply of the apparatus known to the committee at this time
is Brooks Instrument Co., Inc., Hatfield, PA19440, as Sho-Rate 50, Model 1350. If
7.1 Using Practices D 4057 (Manual) or D 4177 (Auto-
you are aware of alternative suppliers, please provide this information to ASTM
matic) obtain a representative sample of the mat
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