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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

Status
Historical
Publication Date
09-Oct-2002
ICS
71.040.40 - Chemical analysis
Technical Committee
E21 - Space Simulation and Applications of Space Technology
Drafting Committee
E21.05 - Contamination
Current Stage
Ref Project

Relations

Replaces
ASTM F307-73(1995)e1 - Standard Practice for Sampling Pressurized Gas for Gas Analysis
Effective Date
10-Oct-2002
Replaced By
ASTM F307-02(2007) - Standard Practice for Sampling Pressurized Gas for Gas Analysis
Effective Date
01-Apr-2007
Referred By
ASTM D2712-23 - Standard Test Method for Determination of Hydrocarbon Impurities in High Purity Propylene by Gas Chromatography
Effective Date
10-Oct-2002
Referred By
ASTM D5234-92(2017) - Standard Guide for Analysis of Ethylene Product
Effective Date
10-Oct-2002
Referred By
ASTM D7833-20 - Standard Test Method for Determination of Hydrocarbons and Non-Hydrocarbon Gases in Gaseous Mixtures by Gas Chromatography
Effective Date
10-Oct-2002
Referred By
ASTM D5507-21a - Standard Test Method for Determination of Trace Organic Impurities in Monomer Grade Vinyl Chloride by Capillary Column/Multidimensional Gas Chromatography
Effective Date
10-Oct-2002
Referred By
ASTM D2504-88(2015) - Standard Test Method for Noncondensable Gases in C<inf>2</inf> and Lighter Hydrocarbon Products by Gas Chromatography
Effective Date
10-Oct-2002
Referred By
ASTM D3764-23 - Standard Practice for Validation of the Performance of Process Stream Analyzer Systems
Effective Date
10-Oct-2002
Referred By
ASTM D3246-15 - Standard Test Method for Sulfur in Petroleum Gas by Oxidative Microcoulometry
Effective Date
10-Oct-2002
Referred By
ASTM D8098-23 - Standard Test Method for Permanent Gases in C<inf>2</inf> and C<inf>3</inf> Hydrocarbon Products by Gas Chromatography and Pulse Discharge Helium Ionization Detector
Effective Date
10-Oct-2002
Referred By
ASTM D6159-23 - Standard Test Method for Determination of Hydrocarbon Impurities in Ethylene by Gas Chromatography
Effective Date
10-Oct-2002
Referred By
ASTM D7551-10(2015) - Standard Test Method for Determination of Total Volatile Sulfur in Gaseous Hydrocarbons and Liquefied Petroleum Gases and Natural Gas by Ultraviolet Fluorescence
Effective Date
10-Oct-2002
Referred By
ASTM D6667-21 - Standard Test Method for Determination of Total Volatile Sulfur in Gaseous Hydrocarbons and Liquefied Petroleum Gases by Ultraviolet Fluorescence
Effective Date
10-Oct-2002
Referred By
ASTM D2505-88(2015) - Standard Test Method for Ethylene, Other Hydrocarbons, and Carbon Dioxide in High-Purity Ethylene by Gas Chromatography
Effective Date
10-Oct-2002

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ASTM F307-02 - Standard Practice for Sampling Pressurized Gas for Gas AnalysisASTM F307-02 - Standard Practice for Sampling Pressurized Gas for Gas Analysis
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ASTM F307-02 - Standard Practice for Sampling Pressurized Gas for Gas Analysis
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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
...

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Standard Practice for Sampling Pressurized Gas for Gas Analysis

ABSTRACT
This practice describes the procedure for obtaining a sample of pressurized gas for gas analysis from a system or component. A sample pressure vessel shall be evacuated and sealed with a minimum vacuum pressure. The vessel shall then be attached to the designated pressurized sample port. The pressurized gas is allowed to enter the sample vessel until the pressure is equal to the pressure of the system or component. The pressure shall be secured and the sample vessel assigned for appropriate analysis. The apparatus shall consist of connecting lines, miscellaneous fittings, tie-downs, and a gas sample vessel.
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5.1 This test method is useful in determining the extrapolated onset temperature, the peak heat flow temperature and the heat of reaction of a material. Any onset temperature determined by this test method is not valid for use as the sole information used for determination of storage or processing conditions.  
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Standard Test Method for Water Using Volumetric Karl Fischer Titration

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4.1 Titration techniques using KF reagent are one of the most widely used for the determination of water.  
4.2 Although the volumetric KF titration can determine low levels of water, it is generally accepted that coulometric KF titrations (see Test Method E1064) are more accurate for routine determination of very low levels of water. As a general rule, if samples routinely contain water concentrations of 500 mg/kg or less, the coulometric technique should be considered.  
4.3 Applications can be subdivided into two sections: (1) organic and inorganic compounds, in which water may be determined directly, and (2) compounds, in which water cannot be determined directly, but in which interferences may be eliminated by suitable chemical reactions or modifications of the procedure. Further discussion of interferences is included in Section 5 and Appendix X2.  
4.4 Water can be determined directly in the presence of the following types of compounds:    
Organic Compounds  
Acetals  
Ethers  
Acids (Note 1)  
Halides  
Acyl halides  
Hydrocarbons (saturated and unsaturated)  
Alcohols  
Ketones, stable (Note 4)  
Aldehydes, stable (Note 2)  
Nitriles  
Amides  
Orthoesters  
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Sulfides  
Disulfides  
Thiocyanates  
Esters  
Thioesters  
Inorganic Compounds  
Acids (Note 5)  
Cupric oxide  
Acid oxides (Note 6)  
Desiccants  
Aluminum oxides  
Hydrazine sulfate  
Anhydrides  
Salts of organic and inorganic acids (Note 6)  
Barium dioxide  
Calcium carbonate  
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N...
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1.1 This test method is intended as a general guide for the application of the volumetric Karl Fischer (KF) titration for determining free water and water of hydration in most solid or liquid organic and inorganic compounds. This test method is designed for use with automatic titration systems capable of determining the KF titration end point potentiometrically; however, a manual titration method for determining the end point visually is included as Appendix X1. Samples that are gaseous at room temperature are not covered (see Appendix X4). This test method covers the use of both pyridine and pyridine-free KF reagents for determining water by the volumetric titration. Determination of water using KF coulometric titration is not discussed. By proper choice of the sample size, KF reagent concentration and apparatus, this test method is suitable for measurement of water over a wide concentration range, that is, parts per million to pure water.  
1.2 The values stated in SI units are to be regarded as standard.  
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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. Specific warnings are given in 3.1 and 7.3.3.  
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