ASTM F309-18

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of the standard as published by ASTM is to be considered the official document.
Designation: F309 − 04 (Reapproved 2018) F309 − 18
Standard Practice for
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Liquid Sampling of Noncryogenic Aerospace Propellants
This standard is issued under the fixed designation F309; 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
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 appropriate safety, health, and environmental practices and determine the applicability of
regulatory limitations prior to use. For hazard statements see Sections 4 and 5.
1.3 This international standard was developed in accordance with internationally recognized principles on standardization
established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued
by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
2. Referenced Documents
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2.1 ASTM Standards:
F311 Practice for Processing Aerospace Liquid Samples for Particulate Contamination Analysis Using Membrane Filters
3. Summary of Practice
3.1 Samples are withdrawn from the system by (1) a closed vessel capture, and (2) an open-end vessel (see Fig. 1). Both
procedures are practical for most liquid aerospace propellants not excessively corrosive or toxic.
4. Apparatus
4.1 Stainless Steel Pressure Sampling Cylinders, 1-L capacity, equipped with stainless steel valves on each end.
4.1.1 Caution—Pressure sampling cylinders must be marked for the liquid being sampled. Cylinders for one material must not
be interchanged with sampling cylinders of other materials because of the possibility of incompatibility.
4.2 Full Protective Suits.
4.2.1 Caution—Due to the toxic and corrosive nature of most propellentpropellant fluids and their vapors, extreme care must
be exercised in handling. Full protective suits must be worn when sampling these fluids.
4.3 Polyethylene Wash Bottle, 1-L capacity, filled with demineralized water, filtered in the manner described in Practice F311.
4.4 Stainless Steel Bucket.
4.5 Miscellaneous Fittings, as needed for sample point adaption.
4.5.1 Caution—Ensure all fittings are compatible with the propellant being sampled. (This includes but is not limited to the
metals and soft goods, such as o-rings, valves, seals, etc.)
5. Hazards
5.1 Care should be taken when handling propellants since most of them are toxic to some degree. Care should also be taken
when sampling fluids from a system under dynamic conditions.
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This practice is under the jurisdiction of ASTM Committee E21 on Space Simulation and Applications of Space Technology and is the direct responsibility of
Subcommittee E21.05 on Contamination.
Current edition approved Sept. 1, 2018Nov. 1, 2018. Published September 2018November 2018. Originally approved in 1966. Last previous edition approved in 20102018
as F309 – 04 (2010).(2018). DOI: 10.1520/F0309-04R18.10.1520/F0309-18.
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F309 − 18
FIG. 1 Two Systems for Obtaining a Sampling of Noncryogenic Aerospace Fluid
PROCEDURE 1—CLOSED SYSTEM
6. Procedure
6.1 Sampling cylinders must be clean, particulate-controlled in accordance with system requirements, and have a partial vacuum
of 10 % of atmospheric pressure.
6.2 After removing protective caps, connect both ends of the sampling cylinder to the system sampling ports, using fittings as
necessary.
6.3 Open both sampling valves and both sampling cylinder valves, and allow fluid to flow through the sampling cylinder for
10 min.
6.4 Close all four valves downstream side first, and remove the sampling cylinder from the system.
6.5 Rinse the valve ends with demineralized water filtered through a 0.8 to
...