ASTM D3705-86(1998)

Standard Test Method for Misting Properties of Lubricating Fluids

SCOPE
1.1 This test method covers the determination of the misting characteristics of lubricating fluids.  Note 1-This test method should not be used to evaluate fluids containing solid additives such as graphite.
1.2 This standard may involve hazardous materials, operations, and equipment. This standard does not purport to address all of the safety problems 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. For specific hazard statements, see Notes 4, 5, 6, and 7.

General Information

• Status: Historical
• Publication Date: 09-Apr-1998
• Technical Committee: D02 - Petroleum Products, Liquid Fuels, and Lubricants
• Drafting Committee: D02.L0 - Industrial Lubricants and Engineering Sciences of High Performance Fluids and Solids

Relations

• Replaced By: ASTM D3705-86(2003)e1 - Standard Test Method for Misting Properties of Lubricating Fluids
• Effective Date: 10-May-2003

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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.
An American National Standard
Designation: D 3705 – 86 (Reapproved 1998)
Standard Test Method for
Misting Properties of Lubricating Fluids
This standard is issued under the fixed designation D 3705; 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 4. Significance and Use
1.1 This test method covers the determination of the misting 4.1 This test provides a guide for evaluating the misting
characteristics of lubricating fluids. characteristics of oils for use in industrial mist lubrication
systems.Thedegreeofcorrelationbetweenthistestandservice
NOTE 1—This test method should not be used to evaluate fluids
performance has not been fully determined.
containing solid additives such as graphite.
1.2 This standard does not purport to address all of the
5. Apparatus
safety concerns, if any, associated with its use. It is the
5.1 The basic system consists of the following:
responsibility of the user of this standard to establish appro-
5.1.1 Oil Mist Generator, with special ASTM-ASLE mist
priate safety and health practices and determine the applica-
head assembly.
bility of regulatory limitations prior to use. For specific hazard
5.1.2 Air Temperature Regulator.
statements, see Note 4, Note 5, Note 6, and Note 7.
5.1.3 Mist Distribution Manifold, as shown in Fig. 1.
5.1.4 Mist Reclassifier Fitting, as shown in Fig. 2.
2. Referenced Documents
5.1.5 Reclassified Oil Collector, as shown in Fig. 3.
2.1 ASTM Standards:
5.2 Balance, 20-kg capacity open pan, with 1-g sensitivity.
D 91 Test Method for Precipitation Number of Lubricating
5.3 Air Supply, from a source capable of maintaining an air
Oils 3
flow rate up to 2 dm /s. The air should be dry, oil-free, and
D 235 Specification for Mineral Spirits (Petroleum Spirits)
filtered through a 1-µm filter.
(Hydrocarbon Dry Cleaning Solvent)
NOTE 3—The oil mist generator head and mist reclassifier fitting are
3. Summary of Test Method available from the Alemite Co. Orders should specify Special ASTM-
ASLE mist head and reclassifier fitting.
3.1 The mist generator is charged with oil and installed in
the mist system. The unit is operated for 19 h; the mist
6. Reagents
generator, line condensate bottles, and reclassified oil collector
6.1 Stoddard Solvent, as specified in Specification D 235
are weighed before and after the test. The output from the
(Type 1).
generator and percentages of reclassified oil, line condensate,
NOTE 4—Warning: Flammable.
and stray mist are determined from changes in weight.
6.2 Precipitation Naphtha, as specified in Method D 91
NOTE 2—Line condensate is the commonly accepted term used to
describe the oil that coalesces in the mist distribution lines. In this test, the
NOTE 5—Warning: Flammable.
oil that coalesces in the 38-mm (1 ⁄2-in.) tubing and the diagonal 19-mm
( ⁄4-in.) tubing is collected and weighed as line condensate. Oil that
7. Preparation of Apparatus
coalesces in the vertical 19-mm ( ⁄4-in.) tubing becomes part of the
7.1 Thorough cleaning of the apparatus with solvent is
reclassified oil.
required prior to initiating a test on a new oil. For a duplicate
test on the same oil, the mist generator should be thoroughly
drained but the apparatus need not be cleaned with solvent.
This test method is under the jurisdiction of ASTM Committee D-2 on
Petroleum Products and Lubricants and is the direct responsibility of Subcommittee
D02.L on Industrial Lubricants.
Current edition approved Oct. 31, 1986. Published December 1986. Originally Alemite No. 383802-4 available from the Alemite Co., Stewart Warner, 1826
published as D 3705 – 78. Last previous edition D 3705 – 78. West Diversey Parkway, Chicago, IL 60614.
2 5
Annual Book of ASTM Standards, Vol 05.01. Alemite thermo-aire unit No. 383808-A4 available from the Alemite Co.,
Annual Book of ASTM Standards, Vol 06.04. Stewart Warner, 1826 West Diversey Parkway, Chicago, IL 60614.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
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.
D 3705
MIST MANIFOLD (12) ⁄4 in. Fig 3 C 45 deg Fig. ell
Proposed ASTM Bill of Materials (13) ⁄4 in. Fig 3 C 90 deg Fig ell
1 1 3 1
(1) 1 ⁄2 C 3 1 ⁄2 in. MPT union (14) ⁄4 C 3 ⁄2 in. F adapter
1 1
(2) 1 ⁄2 in. Copper tubing, 3 in. Long (15) ⁄2 in. Reclassifier fitting 12 holes
(3) 1 ⁄2 in. C 3 C Return bend (16) Collector bottles
(4) 1 ⁄2 in. C Union (17) Thermometer
1 3 1
(5) 1 ⁄2 3 ⁄4 3 1 ⁄2 in. C 3 C 3 C tee (18) Pressure regulator with gage
(6) 1 ⁄2 in. C 45 deg Fig. ell (straight ell) (19) Flow meter
(7) ⁄4 in. Fig 3 MPT adapter (20) Pressure gage
1 1 3
(8) 1 ⁄2 3 1 ⁄2 3 ⁄4 in. C 3 C 3 C tee (21) Air filter
(9) ⁄4 in. C 45 deg Fig. ell (22) Oil mist head assembly special ASTM-ASLE
1 3
(10) 1 ⁄2 in. Fig. 3 ⁄4 in. C extended bushing (23) Oil mist generator
(11) ⁄4 in. C Union (24) Thermo-aire unit
FIG. 1 Mist Test Apparatus
7.2 Drain the oil thoroughly and rinse the generator with 8.1.1 Charge the mist generator with 4 6 0.1 L of test oil.
Stoddard solvent.
Assemble the test apparatus.
8.1.2 Turn the oil flow adjusting screw clockwise to a fully
NOTE 6—Warning: Combustible. Vapor harmful.
closed position and then open the screw by turning it counter-
7.3 Charge the generator with 2 Lof clean Stoddard solvent
clockwise to a full open position.
and mist the Stoddard solvent through the manifold for 30 min.
8.1.3 Open the air regulator until a pressure of 37 millibars
NOTE 7—Warning: Do not use the air heater while misting the
(37 KPa) is obtained on the manifold gage.
Stoddard solvent.
8.1.4 Activate the oil heater and inlet air heater and adjust
7.4 Drain the Stoddard solvent from the generator, rinse the
both to 40 6 1°C.
generator with naphtha, and blow dry with compressed air.
8.1.5 Allow the unit to run for1hto stabilize.
NOTE 8—Warning: Extremely flammable. Harmful if inhaled. Vapors
may cause flash fire.
NOTE 9—The full open position for the oil flow adjusting screw, that is,
the position beyond which further opening of the adjusting screw does not
7.5 Disconnect the mist head and remove the oil adjustment
increase oil output from the mist generator, should be determined for each
screw; rinse the head and screw with naphtha and blow dry.
mist test unit. The full open position on most test units is attained by
7.6 Remove the reclassifier fitting and rinse it with naphtha;
...