ASTM F302-78(2000)
(Practice)Standard Practice for Field Sampling of Aerospace Fluids in Containers
Standard Practice for Field Sampling of Aerospace Fluids in Containers
SCOPE
1.1 This practice covers field sampling of fluids from hermetically sealed containers and other fluid containers of 55-gal (208-L) volume maximum. It may be utilized at manufacturing, storage, or use levels for obtaining representative fluid samples for chemical, physical, or particulate matter determinations.
1.2 Use of this practice depends upon variables such as fluid toxicity, restrictive fluid odors, fluid flammability, etc. It is suitable for most hydraulic fluids; however, care should be exercised in determining compatibility before use.
1.3 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are for information only.
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.For hazard statement, see 6.5.1.
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Designation: F 302 – 78 (Reapproved 2000)
Standard Practice for
Field Sampling of Aerospace Fluids in Containers
This standard is issued under the fixed designation F 302; 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 F 311 Practice for Processing Aerospace Liquid Samples for
Particulate Contamination Analysis Using Membrane Fil-
1.1 This practice covers field sampling of fluids from
ters
hermetically sealed containers and other fluid containers of
F 314 Test Method for Identification of Metallic and Fi-
55-gal (208-L) volume maximum. It may be utilized at
brous Contaminants in Aerospace Fluids
manufacturing, storage, or use levels for obtaining representa-
2.2 Military Standard:
tive fluid samples for chemical, physical, or particulate matter
MIL-C-81302 C Cleaning Compound Solvent Trichlorotri-
determinations.
fluoroethane
1.2 Use of this practice depends upon variables such as fluid
toxicity, restrictive fluid odors, fluid flammability, etc. It is
3. Summary of Practice
suitable for most hydraulic fluids; however, care should be
2 3.1 The minimum requirements for container agitation,
exercised in determining compatibility before use.
sample withdrawal, and sample transfer are given in this
1.3 The values stated in inch-pound units are to be regarded
practice. Precautions to assure sampling reliability are included
as the standard. The values given in parentheses are for
in the procedure to the extent required by normal processing
information only.
conditions. The procedure involves agitating the container,
1.4 This standard does not purport to address all of the
withdrawing with a suitable instrument capable of creating a
safety concerns, if any, associated with its use. It is the
vacuum, a predetermined quantity of fluid, and immediately
responsibility of the user of this standard to establish appro-
transferring it to a vessel, properly identified, to hold for
priate safety and health practices and determine the applica-
analysis by a stipulated method.
bility of regulatory limitations prior to use. For hazard state-
ment, see 6.5.1.
4. Significance and Use
2. Referenced Documents 4.1 Samples obtained by use of this practice are intended for
processing in accordance with Practice F 311, Test Method
2.1 ASTM Standards:
3 D 4898, and Test Method F 314, and other chemical or
D 1193 Specification for Reagent Water
4 physical methods of analysis.
D 1836 Specification for Commercial Hexanes
D 2021 Specification for Neutral Detergent, 40 Percent
5. Apparatus
Alkylbenzene Sulfonate Type
5.1 Pipet, volumetric transfer or equivalent rubber-bulb
D 4898 Test Method for Insoluble Contamination of Hy-
6 type. A taper-jointed type, as shown in Fig. 1, 22 in. (560 mm)
draulic Fluids by Gravimetric Analysis
long, calibrated to deliver 100 mL at 20°C, is also acceptable.
This type provides for ease of maintenance by being separable
at the midpoint of the bulb.
This practice is under the jurisdiction of ASTM Committee E21 on Space
Simulation and Applications of Space Technology and is the direct responsibility of
NOTE 1—The volume capacities selected for the pipet and sample
Subcommittee E21.05 on Contamination.
bottles shall be as required for the sample volume desired. Normally a 100
Current edition approved Aug. 25, 1978. Published October 1978. Originally
6 5-mL sample is standard, which would require a capacity of approxi-
published as D2388 – 65 T. Redesignated F302 in 1970. Last previous edition
mately 125 mL. Unless otherwise indicated, it is intended that a sample
F302 – 70 (1976).
volume of 100 6 5 mL be used for accomplishing the methods defined
Where a special environment is required, a Proposed Laboratory Method for
Sampling Aerospace Fluids in Containers is under development in the committee. herein.
For further information write to B. R. Hall, American Petroleum Institute, 2101 L
St., N.W., Washington, D. C. 20037.
3 7
Annual Book of ASTM Standards, Vol 11.01. Annual Book of ASTM Standards, Vol 14.02.
4 8
Annual Book of ASTM Standards, Vol 06.04. Discontinued: see 1989 Annual Book of ASTM Standards, Vol 14.02.
5 9
Discontinued: see 1999 Annual Book of ASTM Standards, Vol 15.04. Available from Standardization Documents Order Desk, Bldg. 4 Section D, 700
Annual Book of ASTM Standards, Vol 05.02. (Formerly Test Method F 313.) Robbins Ave., Philadelphia, PA 19111-5094, Attn: NPODS.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
F 302
D 1836), trichlorotrifluoroethane conforming to U.S. Military Specifica-
tion MIL-C-81302 C, etc. In any case, reagent selected should not have a
harmful effect on the sampling apparatus, sampled fluid or the equipment
to be used in processing the sample, or both.
7. Preparations of Apparatus and Reagents
7.1 Apparatus used in this practice shall be prepared by a
reliable process for assurance of essentially contamination-free
surfaces.
NOTE 3—It is recommended that a process shall be used as described in
Test Method D 4898 or Practice F 311.
7.2 Reagents used in this practice shall be suitably filtered
and stored to maintain a level of refinement equivalent to the
highest attainable as required by the product evaluation method
of determination.
8. Procedure
8.1 Select at random representative containers of fluid to be
sampled. When defined, selection shall be as required by the
test method. A suggested cube-root sampling quantity is shown
FIG. 1 Separable Pipet
in Table 1. Alternative plans may be based on the past
experience and judgment of the sampling activity. Quantities
5.2 Bottles, sample, wide-mouth type (Note 1).
exceeding those given in Table 1 should be determined by the
5.3 Solvent Filtering Dispenser—An apparatus to dispense
cube-root method.
a stream of 2.0 μm or finer membrane-filtered fluid.
8.2 Having selected the containers to be sampled, prepare
5.4 Vinylidene Chloride, Polyethylene Terephthalate, or
and sample each one individually.
Polyamide Sheet, 4-mil (0.1 mm) min.
8.3 Agitate the fluid container as required to assure safety
5.5 Beverage Can Opener (Unplated), sharpened, de-
and completeness of sampling of the particulate matter. The
burred.
method used shall depend on the height of the container, the
fluid viscosity, and the particle size, as related in Fig. 2. First,
6. Reagents
the container shall be inverted for a period of time sufficient for
6.1 Purity of Reagents—Reagent grade chemicals shall be
the particles of the predominant size to fall half the height of
used
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