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ASTM D4323-15

Historical Revision

Standard Test Method for Hydrogen Sulfide in the Atmosphere by Rate of Change of Reflectance

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1.1 This test method covers the automatic continuous determination of hydrogen sulfide (H2S) in the atmosphere or in gaseous samples in the range from one part per billion by volume (1 ppb/v) to 3000 ppb/v. Information obtained may be used for air-pollution studies and to monitor for emission sources.

1.2 The range may be extended by appropriate dilution techniques or by equipment modification.

1.3 The values stated in SI units are to be regarded as standard. The values given in parentheses are mathematical conversions to inch-pound units that are provided for information only and are not considered standard.

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. (See Section 9 for specific safety precautionary statements.)


5.1 Hydrogen sulfide is an odorous substance which is offensive even at low concentrations in the atmosphere and toxic at higher levels. It may be a product of biological processes in the absence of oxygen, as may occur in municipal garbage landfills. It is emitted from geothermal sources, occurs in oil and gas, and may be emitted from industrial processes. Measurement is required for air pollution studies, for pollution control, and for plume characterization. This test method is intended for hydrogen sulfide content up to 3000 ppbv. Measurement of hydrogen sulfide above this concentration in gaseous fuels, carbon dioxide or other gaseous matrices is described in Test Method D4084. Equipment described is suitable for fixed site or for mobile monitoring.

SDO ASTM: ASTM International
Document Number D4323
Publication Date April 1, 2015
Language en - English
Page Count 6
Revision Level 15
Supercedes
Committee D22.03
Publish Date Document Id Type View
Nov. 1, 2021 D4323-21 Revision
April 1, 2015 D4323-15 Revision
March 1, 2009 D4323-84R09 Reaffirmation
April 10, 2003 D4323-84R03 Reaffirmation
Nov. 10, 1997 D4323-84R97E01 Reaffirmation