ASTM F302-78(1996)
(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 1996)
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 314 Test Method for Identification of Metallic and Fi-
brous Contaminants in Aerospace Fluids
1.1 This practice covers field sampling of fluids from
2.2 Military Standard:
hermetically sealed containers and other fluid containers of
MIL-C-81302 C Cleaning Compound Solvent Trichlorotri-
55-gal (208-L) volume maximum. It may be utilized at
fluoroethane
manufacturing, storage, or use levels for obtaining representa-
tive fluid samples for chemical, physical, or particulate matter
3. Summary of Practice
determinations.
3.1 The minimum requirements for container agitation,
1.2 Use of this practice depends upon variables such as fluid
sample withdrawal, and sample transfer are given in this
toxicity, restrictive fluid odors, fluid flammability, etc. It is
practice. Precautions to assure sampling reliability are included
suitable for most hydraulic fluids; however, care should be
2 in the procedure to the extent required by normal processing
exercised in determining compatibility before use.
conditions. The procedure involves agitating the container,
1.3 The values stated in inch-pound units are to be regarded
withdrawing with a suitable instrument capable of creating a
as the standard. The values given in parentheses are for
vacuum, a predetermined quantity of fluid, and immediately
information only.
transferring it to a vessel, properly identified, to hold for
1.4 This standard does not purport to address all of the
analysis by a stipulated method.
safety concerns, if any, associated with its use. It is the
responsibility of the user of this standard to establish appro-
4. Significance and Use
priate safety and health practices and determine the applica-
4.1 Samples obtained by use of this practice are intended for
bility of regulatory limitations prior to use. For hazard state-
processing in accordance with Practice F 311, Test Method
ment, see 6.5.1.
F 313, and Test Method F 314, and other chemical or physical
methods of analysis.
2. Referenced Documents
2.1 ASTM Standards:
5. Apparatus
D 1193 Specification for Reagent Water
4 5.1 Pipet, volumetric transfer or equivalent rubber-bulb
D 1836 Specification for Commercial Hexanes
type. A taper-jointed type, as shown in Fig. 1, 22 in. (560 mm)
D 2021 Specification for Neutral Detergent, 40 Percent
5 long, calibrated to deliver 100 mL at 20°C, is also acceptable.
Alkylbenzene Sulfonate Type
This type provides for ease of maintenance by being separable
F 311 Practice for Processing Aerospace Liquid Samples for
at the midpoint of the bulb.
Particulate Contamination Analysis Using Membrane Fil-
ters
NOTE 1—The volume capacities selected for the pipet and sample
bottles shall be as required for the sample volume desired. Normally a 100
F 313 Test Method for Insoluble Contamination of Hydrau-
6 5-mL sample is standard, which would require a capacity of approxi-
lic Fluids by Gravimetric Analysis
mately 125 mL. Unless otherwise indicated, it is intended that a sample
volume of 100 6 5 mL be used for accomplishing the methods defined
herein.
This practice is under the jurisdiction of ASTM Committee E-21 on Space
Simulation and Applications of Space Technology and is the direct responsibility of
5.2 Bottles, sample, wide-mouth type (Note 1).
Subcommittee E21.05 on Contamination.
5.3 Solvent Filtering Dispenser—An apparatus to dispense
Current edition approved Aug. 25, 1978. Published October 1978. Originally
a stream of 2.0 μm or finer membrane-filtered fluid.
published as D2388 – 65 T. Redesignated F302 in 1970. Last previous edition
F302 – 70 (1976).
5.4 Vinylidene Chloride, Polyethylene Terephthalate, or
Where a special environment is required, a Proposed Laboratory Method for
Polyamide Sheet, 4-mil (0.1 mm) min.
Sampling Aerospace Fluids in Containers is under development in the committee.
5.5 Beverage Can Opener (Unplated), sharpened, de-
For further information write to B. R. Hall, American Petroleum Institute, 2101 L
St., N.W., Washington, D. C. 20037. burred.
Annual Book of ASTM Standards, Vol 11.01.
Annual Book of ASTM Standards, Vol 06.04.
Annual Book of ASTM Standards, Vol 15.04.
6 8
Annual Book of ASTM Standards, Vol 14.02. Available from Standardization Documents Order Desk, Bldg. 4 Section D, 700
Annual Book of ASTM Standards, Vol 15.03. Robbins Ave., Philadelphia, PA 19111-5094, Attn: NPODS.
Copyright © ASTM, 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959, United States.
F 302
NOTE 3—It is recommended that a process shall be used as described in
Test Method F 313 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
in Table 1. Alternative plans may be based on the past
experience and judgment of the sampling activity. Quantities
exceeding those given in Table 1 should be determined by the
cube-root method.
8.2 Having selected the containers to be sampled, prepare
and sample each one individually.
8.3 Agitate the fluid container as required to assure safety
and completeness of sampling of the particulate matter. The
method used shall depend on the height of the container, the
fluid viscosity, and the particle size, as related in Fig. 2. First,
FIG. 1 Separable Pipet
the container shall be inverted for a period of time sufficient for
the particles of the predominant size to fall half the height of
6. Reagents
the container. This time shall be determined as follows: the
6.1 Purity of Reagents—Reagent grade chemicals shall be
fluid viscosity at the temperature of sampling shall be esti-
used in all tests. Unless otherwise indicated, it is intended that
mated and an appropriate diagonal line on Fig. 2 selected. The
all reagents shall conform to the specifications of the Commit-
predominant particle size will probably be known from past
tee on Analytical Reagents of the American Chemical Society,
9 experience; if not, 20 μm may be used as a preliminary
where such specifications are avai
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