Standard Test Method for
Solubility of Fixed Gases in Low-Boiling Liquids1
This standard is issued under the fixed designation D 3429; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of the 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 test method covers the determination of the solubilities of nonreactive gases such as nitrogen and helium in
liquids that boil below 273 K. This test method is applicable at
temperatures from 77 to 300 K from subambient pressure to
6.5 MPa (65 atm). This test method does not provide for
analysis of the vapour phase in equilibrium with the liquid (see
Section 3 for a description of terms).
1.2 This test method as written describes the procedures to
be followed for determination of the solubilities of helium and
nitrogen. If suitable modifications are made to the analytical
measurements by gas chromatography, solubilities of other
gases such as argon, hydrogen, oxygen, etc., can be determined.
1.3 The values stated in SI units are to be regarded as the
standard. In cases where materials, products, or equipment are
available in inch-pound units only, SI units are omitted.
1.4 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 specific hazard
statements, see 6.1.2 and 7.1 and Annex A1.
2. Referenced Documents
2.1 ASTM Standards:
E 260 Practice for Packed Column Gas Chromatography2
3. Terminology
3.1 Definitions of Terms Specific to This Standard:
3.1.1 carrier gas, n—the gas used to sweep samples through the
gas chromatography.
3.1.2 test gas, n—gas whose solubility is being determined.
3.1.3 liquid or test liquid—solvent for test gas.
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