ASTM D3115-95(2005)
(Test Method)Standard Test Method for Explosive Reactivity of Lubricants with Aerospace Alloys Under High Shear
Standard Test Method for Explosive Reactivity of Lubricants with Aerospace Alloys Under High Shear
SIGNIFICANCE AND USE
Explosive reactivity has resulted when parts made from some light alloys, typically high in aluminum and magnesium, are loaded under shear conditions while in contact with certain lubricants. A typical example is a threaded part, lubricated with a chlorofluorocarbon grease, pulled up normally tight.
SCOPE
1.1 This test method is used to evaluate for explosive reactivity of various lubricants in the presence of aerospace alloys under high shear conditions.
1.2 The values stated in SI units are to be regarded as the standard. In cases where materials, products, or equipment are available in inch-pound units only, SI units are omitted.
1.3 This standard should be used to measure and describe the response of materials, products, or assemblies to heat and flame under controlled conditions and should not be used to describe or appraise the fire-hazard or fire-risk of materials, products, or assemblies under actual fire conditions. However, results of the test may be used as elements of a fire-hazard assessment or a fire-risk assessment which takes into account all of the factors which are pertinent to an assessment of the fire hazard or fire risk of a particular end use.
1.4 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.
General Information
Relations
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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
Designation:D3115–95 (Reapproved 2005)
Standard Test Method for
Explosive Reactivity of Lubricants with Aerospace Alloys
Under High Shear
This standard is issued under the fixed designation D3115; 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 3. Terminology
1.1 This test method is used to evaluate for explosive 3.1 Definitions of Terms Specific to This Standard:
reactivity of various lubricants in the presence of aerospace 3.1.1 explosive reactivity, n—occurrence of sparks, smoke,
alloys under high shear conditions. or explosive (audible) sounds during this test.
1.2 The values stated in SI units are to be regarded as the 3.1.2 lubricants, n—liquid materials used as lubricants or
standard. In cases where materials, products, or equipment are cutting fluids in the presence of aerospace alloys.
available in inch-pound units only, SI units are omitted.
4. Summary of Test Method
1.3 This standard should be used to measure and describe
4.1 A shaped dowel pin made of the test material is rotated
the response of materials, products, or assemblies to heat and
flame under controlled conditions and should not be used to at 1760 rpm under a pressure of 689 MPa (1000 psi) for 1 min
in a shaped hole (drilled into a block of the test material)
describe or appraise the fire-hazard or fire-risk of materials,
products, or assemblies under actual fire conditions. However, containing the test lubricant. Observation for indications of
reaction is made.
results of the test may be used as elements of a fire-hazard
assessment or a fire-risk assessment which takes into account
5. Significance and Use
allofthefactorswhicharepertinenttoanassessmentofthefire
5.1 Explosive reactivity has resulted when parts made from
hazard or fire risk of a particular end use.
some light alloys, typically high in aluminum and magnesium,
1.4 This standard does not purport to address all of the
are loaded under shear conditions while in contact with certain
safety concerns, if any, associated with its use. It is the
lubricants.Atypical example is a threaded part, lubricated with
responsibility of the user of this standard to establish appro-
a chlorofluorocarbon grease, pulled up normally tight.
priate safety and health practices and determine the applica-
bility of regulatory limitations prior to use.
6. Apparatus
2. Referenced Documents
6.1 Fluted Ball-End End Mills, two, 12.7 6 0.025 mm
(0.500 6 0.001 in.) in diameter with a 6.35 6 0.025-mm
2.1 ASTM Standards:
(0.2506 0.001-in.) radius tip, finished to 0.203 to 0.406 µm (8
B209 Specification for Aluminum and Aluminum-Alloy
to 16 µin.) rms.
Sheet and Plate
6.2 Drill Press, capable of rotating at 1760 rpm under a
B221 Specification for Aluminum and Aluminum-Alloy
6.89-MPa (1000-psi) load.
Extruded Bars, Rods, Wire, Profiles, and Tubes
6.3 Drill Chuck, capacity 12.7-mm ( ⁄2-in.) end mill.
2.2 ANSI Standard:
6.4 Loading Device, capable of putting a pressure of 6.89
B 46.1 Surface Texture
MPa (1000 psi) on the dowel test pin.
6.5 Force Gage, 1112 N (250-lbf) force.
1 6.6 Drill Press Vise, capable of holding the test block in
This test method is under the jurisdiction of ASTM Committee D02 on
position.
Petroleum Products and Lubricants and is the direct responsibility of Subcommittee
D02.11 on Engineering Sciences of High Performance Fluids and Solids. ASTM
6.7 Surface Texture Standards, conforming to American
Committee F07 onAerospace andAircraft maintains a continued interest in this test
National Standard for Surface Texture (ANSI B 46.1).
method and will make use of it in the future.
Current edition approved June 1, 2005. Published September 2005. Originally
approvedin1972.Lastpreviouseditionapprovedin2000asD3115–95(2000).DOI:
10.1520/D3115-95R05. Carbide tipped ball-end end mills are available and may be used when working
For referenced ASTM standards, visit the ASTM website, www.astm.org, or with metals harder than aluminum.
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM The sole source of supply of the gage known to the committee at this time is
Standards volume information, refer to the standard’s Document Summary page on AMETEK, Inc., Testing Equipment Div., Box 288, Lansdale, PA 19446. If you are
the ASTM website. aware of alternative suppliers, please provide this information to ASTM Interna-
Available fromAmerican National Standards Institute (ANSI), 25 W. 43rd St., tional Headquarters.Your comments will receive careful consideration at a meeting
4th Floor, New York, NY 10036. of the responsible technical committee, which you may attend.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
D3115–95 (2005)
mm in.
0.254 0.010
6.35 0.250
12.7 0.500
FIG. 1 Block, Drilled for Tests
6.8 Transparent Safety Shield. 7.3 Acetone, reagent grade.
6.9 Thermocouple and Potentiometer, optional, for measur- 7.4 Test Lubricant, sufficient for at least one test series (that
ing hole-bottom temperature. is, 6 mL).
6.10 Desiccator, maintained at 50 6 5 % relative humidity.
8. Test Specimen
Water saturated with Ca(NO ) ·4H O at 294 K (70°F) is
3 2 2
8.1 Prepare the block, as shown in Fig. 1, by drilling six
satisfactory.
holes with the 12.7 mm (0.500-in.) ball-end end mill to a depth
7. Materials
of 12.7 mm 6 0.254 mm (0.500 6 0.100 in.) measured to the
tip of the hole. The hole centers shall not be less than 12.7 mm
7.1 Blocks,oftheappropriatealloy,25.4mm(1in.)thickby
(0.500 in.) from the edge of the block or another hole. The ball
38 mm (1.5 in.) wide by 165 mm
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.