ASTM D2914-15(2022)
Standard Test Methods for Sulfur Dioxide Content of the Atmosphere (West-Gaeke Method)

Standard No.

ASTM D2914-15(2022)

Release Date

2022

Published By

American Society for Testing and Materials (ASTM)

Latest

ASTM D2914-15(2022)

Scope

1.1 These test methods cover the bubbler collection and colorimetric determination of sulfur dioxide (SO2) in the ambient or workplace atmosphere. 1.2 These test methods are applicable for determining SO2 over the range from approximately 25 µg/m3 (0.01 ppm(v)) to 1000 µg/m3 (0.4 ppm(v)), corresponding to a solution concentration of 0.03 µg SO2/mL to 1.3 µg SO2/mL. Beer’s law is followed through the working analytical range from 0.02 µg SO2/mL to 1.4 µg SO2/mL. 1.3 The lower limit of detection is 0.075 µg SO2/mL (1),2 representing an air concentration of 25 µg SO2/m3 (0.01 ppm(v)) in a 30-min sample, or 13 µg SO2/m3 (0.005 ppm(v)) in a 24-h sample. 1.4 These test methods incorporate sampling for periods between 30 min and 24 h. 1.5 These test methods describe the determination of the collected (impinged) samples. A Method A and a Method B are described. 1.6 Method A is preferred over Method B, as it gives the higher sensitivity, but it has a higher blank. Manual Method B is pH-dependent, but is more suitable with spectrometers having a spectral band width greater than 20 nm. NOTE 1—These test methods are applicable at concentrations below 25 µg/m3 by sampling larger volumes of air if the absorption efficiency of the particular system is first determined, as described in Annex A4. NOTE 2—Concentrations higher than 1000 µg/m3 can be determined by using smaller gas volumes, larger collection volumes, or by suitable dilution of the collected sample with absorbing solution prior to analysis. 1.7 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.8 Warning—Mercury has been designated by many regulatory agencies as a hazardous material that can cause serious medical issues. Mercury, or its vapor, has been demonstrated to be hazardous to health and corrosive to materials. Caution should be taken when handling mercury and mercury containing products. See the applicable product Safety Data Sheet (SDS) for additional information. Users should be aware that selling mercury and/or mercury containing products into your state or country may be prohibited by law. 1.9 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. For specific precautionary statements, see 8.3.1, Section 9, and A3.1.3. 1.10 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 D2914-15(2022) Referenced Document

• ASTM D1193 Standard Specification for Reagent Water
• ASTM D1356 Standard Terminology Relating to Sampling and Analysis of Atmospheres*， 2024-04-21 Update
• ASTM D1357 Standard Practice for Planning the Sampling of the Ambient Atmosphere
• ASTM D1914 Standard Practice for Conversion Units and Factors Relating to Sampling and Analysis of Atmospheres*， 2022-09-01 Update
• ASTM D3195 Standard Practice for Rotameter Calibration
• ASTM D3609 Standard Practice for Calibration Techniques Using Permeation Tubes*， 2022-11-01 Update
• ASTM D3631 Standard Test Methods for Measuring Surface Atmospheric Pressure
• ASTM E1 Standard Specification for ASTM Thermometers
• ASTM E2251 Standard Specification for Liquid-in-Glass ASTM Thermometers with Low-Hazard Precision Liquids
• ASTM E275 Standard Practice for Describing and Measuring Performance of Ultraviolet, Visible, and Near-Infrared Spectrophotometers

ASTM D2914-15(2022) history

• 2022 ASTM D2914-15(2022) Standard Test Methods for Sulfur Dioxide Content of the Atmosphere (West-Gaeke Method)
• 2015 ASTM D2914-15 Standard Test Methods for Sulfur Dioxide Content of the Atmosphere (West-Gaeke Method)
• 2001 ASTM D2914-01(2007) Standard Test Methods for Sulfur Dioxide Content of the Atmosphere (West-Gaeke Method)
• 2001 ASTM D2914-01 Standard Test Methods for Sulfur Dioxide Content of the Atmosphere (West-Gaeke Method)
• 1995 ASTM D2914-95 Standard Test Methods for Sulfur Dioxide Content of the Atmosphere (West-Gaeke Method)