ASTM G50-10(2015)
Standard Practice for Conducting Atmospheric Corrosion Tests on Metals

Standard No.

ASTM G50-10(2015)

Release Date

2010

Published By

American Society for Testing and Materials (ASTM)

Status

Be replaced

Replace By

ASTM G50-20

Latest

ASTM G50-20

Scope

3.1 The procedures described herein can be used to evaluate the corrosion resistance of metals when exposed to the weather, as well as to evaluate the relative corrosivity of the atmosphere at specific locations. Because of the variability and complexity of weather effects and the industrial and natural factors influencing the atmospheric corrosivity of a test site, a multi-year exposure period should be considered to minimize their influence. Also, as corrosivity may vary at a site from season to season, exposures should be made either at the same time of the year to minimize variability or these differences should be established by multiple exposures.

3.2 Control specimens should always be employed in weathering tests. The control specimens should be from a material having established weathering characteristics. A substantial amount of corrosion data shall have been accumulated for the control specimens. It is also good practice to retain samples of all materials exposed so that possible effects of long-term aging can be measured.

1.1 This practice covers and defines conditions for exposure of metals and alloys to the weather. It sets forth the general procedures that should be followed in any atmospheric test. It is presented as an aid in conducting atmospheric corrosion tests so that some of the pitfalls of such testing may be avoided. As such, it is concerned mainly with panel exposures to obtain data for comparison purposes.

1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.

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 whoever uses this standard to consult and establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

ASTM G50-10(2015) Referenced Document

• ASTM A380 Standard Practice for Cleaning, Descaling, and Passivation of Stainless Steel Parts, Equipment, and Systems
• ASTM D2010/D2010M Standard Test Methods for Evaluation of Total Sulfation Activity in the Atmosphere by the Lead Dioxide Technique
• ASTM G1 Standard Practice for Preparing, Cleaning, and Evaluating Corrosion Test Specimens
• ASTM G140 Standard Test Method for Determining Atmospheric Chloride Deposition Rate by Wet Candle Method
• ASTM G33 Standard Practice for Recording Data from Atmospheric Corrosion Tests of Metallic-Coated Steel Specimens
• ASTM G46 Standard Guide for Examination and Evaluation of Pitting Corrosion
• ASTM G84 Standard Practice for Measurement of Time-of-Wetness on Surfaces Exposed to Wetting Conditions as in Atmospheric Corrosion Testing
• ASTM G91 Standard Practice for Monitoring Atmospheric SO2 Using the Sulfation Plate Technique
• ASTM G92 Standard Practice for Characterization of Atmospheric Test Sites

ASTM G50-10(2015) history

• 2020 ASTM G50-20 Standard Practice for Conducting Atmospheric Corrosion Tests on Metals
• 2010 ASTM G50-10(2015) Standard Practice for Conducting Atmospheric Corrosion Tests on Metals
• 2010 ASTM G50-10 Standard Practice for Conducting Atmospheric Corrosion Tests on Metals
• 1976 ASTM G50-76(2003) Standard Practice for Conducting Atmospheric Corrosion Tests on Metals
• 1997 ASTM G50-76(1997)e1 Standard Practice for Conducting Atmospheric Corrosion Tests on Metals