ASTM G 91 Standard Practice for Monitoring Atmospheric SO2 Using the Sulfation Plate Technique
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ASTM G 91 Document Information:
Title
Standard Practice for Monitoring Atmospheric SO2 Using the Sulfation Plate Technique
ASTM International
Publication Date:
Oct 10, 1997
Scope:
This practice covers a weighted average effective SO2 level for a
30-day interval through the use
of the sulfation plate method, a technique for estimating the
effective SO2 content of the
atmosphere, and especially with regard to the atmospheric corrosion of
stationary structures or
panels. This practice is aimed at determining SO2 levels rather than
sulfuric acid aerosol or acid
precipitation.
The results of this practice correlate approximately with volumetric
SO2 concentrations, although
the presence of dew or condensed moisture tends to enhance the capture
of SO2 into the plate.
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.
Keywords:
- atmospheric corrosion
- exposures
- measurement
- plate preparation
- sulfate analysis
- sulfation plates
- sulfur dioxide
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