ASTM F307-13(2020)

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.
Designation: F307 − 13 (Reapproved 2020)
Standard Practice for
Sampling Pressurized Gas for Gas Analysis
ThisstandardisissuedunderthefixeddesignationF307;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginal
adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.Asuperscript
epsilon (´) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the U.S. Department of Defense.
1. Scope 4. Summary of Practice
1.1 This practice describes procedures for obtaining a 4.1 Evacuated Sample Vessel Procedure—A sample pres-
sample of pressurized gas for gas analysis from a system or sure vessel is evacuated and sealed with a minimum vacuum
-3
component. pressure of 10 torr. The vessel is then attached to the
designated pressurized sample port. The pressurized gas is
1.2 The values stated in SI units are to be regarded as the
allowed to enter the sample vessel until the pressure is equal to
standard.
the pressure of the system or component. The pressure is
1.3 This standard does not purport to address all of the
secured and the sample vessel assigned for appropriate analy-
safety concerns, if any, associated with its use. It is the
sis.
responsibility of the user of this standard to establish appro-
4.2 Purged Sample Vessel Procedure—The pressurized gas
priate safety, health, and environmental practices and deter-
sample port is opened to establish a low level purge.Asample
mine the applicability of regulatory limitations prior to use.
vessel with valves opened at each end is attached to the
For hazard statement, see Section 6.
pressurized sample port.The pressurized sample port is opened
1.4 This international standard was developed in accor-
and the purge pressure is increased to completely purge the
dance with internationally recognized principles on standard-
vessel prior to sample capture. The vessel valves and sample
ization established in the Decision on Principles for the
port valves are then closed and the sample vessel delivered for
Development of International Standards, Guides and Recom-
analysis.
mendations issued by the World Trade Organization Technical
Barriers to Trade (TBT) Committee.
5. Apparatus
NOTE 1—All apparatus used in the sample taking should be verified as
2. Referenced Documents
cleaned and packaged within the requirements of the allowable contami-
2.1 ASTM Standards:
nation of the system.
F310 Practice for Sampling Cryogenic Aerospace Fluids
5.1 Connecting Lines, rigid or flexible, pressure rated and
G93 Guide for Cleanliness Levels and Cleaning Methods for
identified within recognized safety codes.
Materials and Equipment Used in Oxygen-Enriched En-
5.2 Miscellaneous Fittings, as needed for sampling point
vironments
adaption.
3. Terminology
5.3 Tie-downs, suitable for sample line restraint in accord
3.1 Definitions:
with pressure, temperature, and recognized safety codes.
3.1.1 sample port—the designated point in a system or
5.4 Gas Sample Vessel, rated for the appropriate maximum
component from which a representative gas sample may be
and minimum pressure for the gas analysis method to be used.
taken.
This vessel should have valves at inlet and outlet to enable
lockup of vacuum or pressure. (See Fig. 1.)
This practice is under the jurisdiction of ASTM Committee E21 on Space
NOTE 2—The gas sample vessel capacity is selected in accord with
Simulation andApplications of Space Technology and is the direct responsibility of
desired sample volume. For evacuated vessel sampling, a recommended
Subcommittee E21.05 on Contamination. ASTM Committee D02 on Petroleum
8-L(500-in ) volume has been determined adequate to aerospace industry.
Products and Lubricants maintains a continued interest in this practice and will
Evacuated sample vessels should be helium leak tested prior to use.
make use of it in the future.
Current edition approved April 1, 2020. Published April 2020. Originally
approved in 1966. Last previous edition approved in 2013 as F307 – 13. DOI:
6. Safety Hazards
10.1520/F0307-13R20.
For referenced ASTM standards, visit the ASTM website, www.astm.org, or 6.1 Personnel must stand clear of exiting gas.
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
6.2 Ear protection must be used when gas flow approaches
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. sonic velocity.
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