ASTM F309-70(1996)

NOTICE: This standard has either been superseded and replaced by a new version or discontinued.
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Designation: F 309 – 70 (Reapproved 1996) An American National Standard
Standard Practice for
Liquid Sampling of Noncryogenic Aerospace Propellants
This standard is issued under the fixed designation F 309; 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
1.1 This practice covers procedures for obtaining a sample
of noncryogenic aerospace propellant. Two procedures are
covered as follows:
Procedure 1—Closed System (Section 6), and
Procedure 2—Open-End Procedure (Section 7).
1.2 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 appro-
priate safety and health practices and determine the applica-
bility of regulatory limitations prior to use. For hazard state-
ments see Sections 4 and 5.
2. Referenced Documents
2.1 ASTM Standards:
FIG. 1 Two Systems for Obtaining a Sampling of Noncryogenic
Aerospace Fluid
F 311 Practice for Processing Aerospace Liquid Samples for
Particulate Contamination Analysis Using Membrane Fil-
ters
demineralized water, filtered in the manner described in ASTM
3. Summary of Practice
Practice F 311.
3.1 Samples are withdrawn from the system by (1) a closed
4.4 Stainless Steel Bucket.
vessel capture, and (2) an open-end vessel (see Fig. 1). Both
4.5 Miscellaneous Fittings, as needed for sample point
procedures are practical for most liquid aerospace propellants
adaption.
not excessively corrosive or toxic.
5. Hazards
4. Apparatus
5.1 Care should be taken when handling propellants since
4.1 Stainless Steel Pressure Sampling Cylinders, 1-L capac-
most of them are toxic to some degree. Care should also be
ity, equipped with stainless steel valves on each end.
taken when sampling fluids from a system under dynamic
4.1.1 Caution—Pressure sampling cylinders must be
conditions.
marked for the liquid being sampled. Cylinders for one
PROCEDURE 1—CLOSED SYSTEM
material must not be interchanged with sampling cylinders of
other materials because of the possibility of incompatibility.
6. Procedure
4.2 Full Protective Suits.
6.1 Sampling cylinders must be clean, particulate-controlled
4.2.1 Precaution—Due to the toxic and corrosive nature of
in accordance with system requirements, and have a partial
most propellent fluids and their vapors, extreme care must be
vacuum of 10 percent of atmospheric pressure.
exercised in handling. Full protective suits must be worn when
6.2 After removing protective caps, connect both ends of the
sampling these fluids.
sampling cylinder to the system sampling ports using fittings as
4.3 Polyethylene Wash Bottle, 1-L capacity, filled with
necessary.
6.3 Open both sampling valves and both sampling cylinder
valves, and allow fluid to flow
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