ASTM F307-02
(Practice)Standard Practice for Sampling Pressurized Gas for Gas Analysis
Standard Practice for Sampling Pressurized Gas for Gas Analysis
SCOPE
1.1 This practice describes the procedure for obtaining a sample of pressurized gas for gas analysis from a system or component.
1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
1.3 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 Section 5.
General Information
Relations
Standards Content (Sample)
NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation:F307–02
Standard Practice for
1
Sampling Pressurized Gas for Gas Analysis
This standard is issued under the fixed designation F 307; 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.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope 4.2 Miscellaneous Fittings, as needed for sampling point
adaption.
1.1 This practice describes the procedure for obtaining a
4.3 Tie-downs, suitable for sample line restraint in accord
sample of pressurized gas for gas analysis from a system or
with pressure, temperature, and recognized safety codes.
component.
4.4 Gas Sample Vessel, evacuated to a suitable pressure for
1.2 The values stated in SI units are to be regarded as the
the gas analysis method to be used. This vessel should have
standard. The values given in parentheses are for information
valves at inlet and outlet to enable lockup of vacuum or
only.
pressure. (See Fig. 1.)
1.3 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-
ment, see Section 5.
FIG. 1 Gas Sample Vessel.
2. Terminology
NOTE 2—The gas sample vessel capacity is in accord with desired
2.1 Definitions:
3
sample volume. A recommended 8-L (500-in ) volume has been deter-
2.1.1 sample port—the designated point in a system or
mined adequate to aerospace industry. The gas sample vessel must be
component from which a representative gas sample may be
pressure-rated for the system or component to be sampled.
taken.
5. Safety Hazards
3. Summary of Practice
5.1 Personnel must stand clear of exiting gas.
3.1 Asample pressure vessel is evacuated and sealed with a
5.2 Ear protection must be used when gas flow approaches
minimum vacuum pressure of 10-3 torr. The vessel is then
sonic velocity.
attached to the designated pressurized sample port. The pres-
5.3 All lines and associated equipment must be connected
surized gas is allowed to enter the sample vessel until the
and operated within the requirements of recognized safety
pressure is equal to the pressure of the system or component.
codes.
The pressure is secured and the sample vessel assigned for
appropriate analysis.
6. Procedure
6.1 Establish and maintain a minimum purge at the sample
4. Apparatus
port.
NOTE 1—All apparatus used in the sample taking should be verified as
6.2 Connect one end of a suitable connecting line to the
cleaned and packaged within the requirements of the allowable contami-
sample port
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.