ASTM D4323-21 PDF

Scope: 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, fence-line monitoring, and other source emission monitoring. 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. (See Section 9 for specific safety precautionary statements.) 1.5 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.

ASTM D4323-21 Referenced Document

ASTM D1193 Standard Specification for Reagent Water
ASTM D1356 Standard Terminology Relating to Sampling and Analysis of Atmospheres*， 2024-04-22 Update
ASTM D2420 Standard Test Method for Hydrogen Sulfide In Liquefied Petroleum (LP) Gases (Lead Acetate Method)
ASTM D2725
ASTM D3609 Standard Practice for Calibration Techniques Using Permeation Tubes*， 2022-11-01 Update
ASTM D4084 Standard Test Method for Analysis of Hydrogen Sulfide in Gaseous Fuels (Lead Acetate Reaction Rate Method)
ASTM D6299 Standard Practice for Applying Statistical Quality Assurance and Control Charting Techniques to Evaluate Analytical Measurement System Performance*， 2023-07-01 Update
ASTM D6792 Standard Practice for Quality Management Systems in Petroleum Products, Liquid Fuels, and Lubricants Testing Laboratories*， 2023-11-01 Update

2021 ASTM D4323-21 Standard Test Method for Hydrogen Sulfide in the Atmosphere by Rate of Change of Reflectance
2015 ASTM D4323-15 Standard Test Method for Hydrogen Sulfide in the Atmosphere by Rate of Change of Reflectance
2009 ASTM D4323-84(2009) Standard Test Method for Hydrogen Sulfide in the Atmosphere by Rate of Change of Reflectance
1984 ASTM D4323-84(2003) Standard Test Method for Hydrogen Sulfide in the Atmosphere by Rate of Change of Reflectance
1997 ASTM D4323-84(1997)e1 Standard Test Method for Hydrogen Sulfide in the Atmosphere by Rate of Change of Reflectance