ASTM D 2010/D2010M : 1998 : R2024
Current
The latest, up-to-date edition.
Standard Test Methods for Evaluation of Total Sulfation Activity in the Atmosphere by the Lead Dioxide Technique
Hardcopy , PDF
English
01-11-2024
Important note : Users cannot be edited or removed once added to your Multi user PDF.| Committee |
D 22
|
| DocumentType |
Test Method
|
| Pages |
6
|
| PublisherName |
American Society for Testing and Materials
|
| Status |
Current
|
| Supersedes |
1.1These test methods describe the evaluation of the total sulfation activity in the atmosphere. Because of its oxidizing power, lead dioxide (PbO2) converts not only sulfur dioxide (SO2), but other compounds, such as mercaptans and hydrogen sulfide, into sulfate. It fixes sulfur trioxide and sulfuric acid mist present in the atmosphere (see Note 1).
1.2Test Method A describes the use of a PbO2 candle, and Test Method B describes that of a PbO2 sulfation plate.2
1.3These test methods provide a weighted average effective SO2 level for a 30-day interval.
1.4The results of these test methods correlate approximately with volumetric SO2 concentrations, although the presence of dew or condensed moisture tends to enhance the capture of SO2 onto the candle or plate.
1.5The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system are not necessarily exact equivalents; therefore, to ensure conformance with the standard, each system shall be used independently of the other, and values from the two systems shall not be combined.
Note 1:It has been shown that the rate constant of the chemical reaction between SO2 and PbO2 is independent of the concentration of SO2 up to levels of 1000 ppm(v), if 15 % or less of the PbO2 has been reduced (1).3 15 % of the PbO2 is equivalent to 11 mg to 12 mg of SO2/cm2 per day.
1.6This 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 Section 8.
1.7This 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 G 91 : 2011 : R2018 | Standard Practice for Monitoring Atmospheric SO<inf>2</inf> Deposition Rate for Atmospheric Corrosivity Evaluation |
| ASTM G 50 : 2020 | Standard Practice for Conducting Atmospheric Corrosion Tests on Metals |
Access your standards online with a subscription
Features
-
Simple online access to standards, technical information and regulations.
-
Critical updates of standards and customisable alerts and notifications.
-
Multi-user online standards collection: secure, flexible and cost effective.