1. Scope

1.1 This practice gives suggested procedures for the characterization of atmospheric test sites. Continuous characterization can provide corrosion data, environmental data, or both which will signal changes in corrosivity of the atmospheric environment. This practice can also provide guidance for classification of future test sites.

1.2 Two methods are defined in this practice for the characterization of atmospheric test sites. The methods are identified as characterization Methods A and B. The preferred characterization technique would require using both Method A and B for concurrent data collection.

1.2.1 Method A is to be used when atmospheric corrosion is monitored on a continuing basis at a test site using specified materials and exposure configurations.

1.2.2 Method B is specified when atmospheric factors are monitored on a continuing basis.

1.3 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.

2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.

ASTM Standards

A36/A36M Specification for Carbon Structural Steel

B6 Specification for Zinc

G1 Practice for Preparing, Cleaning, and Evaluating Corrosion Test Specimens

G50 Practice for Conducting Atmospheric Corrosion Tests on Metals

G84 Practice for Measurement of Time-of-Wetness on Surfaces Exposed to Wetting Conditions as in Atmospheric Corrosion Testing

G91 Practice for Monitoring Atmospheric SO2 Deposition Rate for Atmospheric Corrosivity Evaluation

Keywords

atmospheric characterization; atmospheric factors; atmospheric testing; identification; mass loss; monitoring; reporting; standard test materials; Atmospheric corrosion analysis; Barometric measurement; Characteristics/characterization; Chloride analysis--atmospheric; Copper-bearing structural carbon steel; Dust; Hygrothermograph; Materials selection/storage data; Rain gage; Relative humidity (RH); Solar energy; Sulfur dioxide (SO 2 ); Temperature tests; Testing methods--atmospheric analysis; Time of wetness; Wind speed and direction; Environmental control/fate; High-purity zinc ;

ICS Code

ICS Number Code 19.040 (Environmental testing)

DOI: 10.1520/G0092-86R03

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