ASTM D6899-03
Standard Guide for Laboratory Cyclic Corrosion Testing of Automotive Painted Steel
- Standard No.
- ASTM D6899-03
- Release Date
- 2003
- Published By
- American Society for Testing and Materials (ASTM)
- Status
- 2010-03
- Latest
- ASTM D6899-03
- Scope
When a laboratory-accelerated test simulates the changing conditions to which automotive finishes are exposed, more realistic corrosion failures are produced.
Cyclic corrosion tests are effective for evaluating a variety of corrosion mechanisms, such as general, galvanic, crevice, etc. The cyclic corrosion tests make use of many types of environments, such as salt fog (Practice B 117
), humidity (Practice D 2247 or Practice D 1735 ) and dry conditions to accelerate metallic corrosion. In cyclic corrosion testing, specimens can be exposed to many different types of environmental conditions and cycled from one environment to another. In all tests it is imperative to expose control specimens with an established corrosion performance together with the test specimens to make a comparison possible of the corrosion performance of the two sets.
Guidelines are included for those who evaluate the corrosion performance of painted metal parts in cyclic corrosion tests. These guidelines are intended to help ensure that the results of the tests can be used to reach conclusions concerning the variables under study, without being affected by the test procedure itself. The guidelines are also intended to assist users of this type of test in obtaining good inter-laboratory agreement of results.
This guide is not intended to be a substitute for the described cyclic corrosion test standard. In all cases, the laboratory should obtain the most recent published standard for complete details. The published standard supersedes this guide.
1.1 This guide is designed to assist in determining the appropriate corrosion test methods for automotive painted steel.
1.2 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 requirements prior to use.
ASTM D6899-03 Referenced Document
- ASTM B117 Standard Practice for Operating Salt Spray (Fog) Apparatus
- ASTM D1193 Standard Specification for Reagent Water
- ASTM D16 Standard Terminology for Paint, Related Coatings, Materials, and Applications
- ASTM D1654 Standard Test Method for Evaluation of Painted or Coated Specimens Subjected to Corrosive Environments
- ASTM D1735 Standard Practice for Testing Water Resistance of Coatings Using Water Fog Apparatus
- ASTM D2247 Standard Practice for Testing Water Resistance of Coatings in 100% Relative Humidity
- ASTM D3170 Standard Test Method for Chipping Resistance of Coatings
- ASTM D609 Standard Practice for Preparation of Cold-Rolled Steel Panels for Testing Paint, Varnish, Conversion Coatings, and Related Coating Products
- ASTM D6675 Standard Practice for Salt-Accelerated Outdoor Cosmetic Corrosion Testing of Organic Coatings on Automotive Sheet Steel
- ASTM D823 Standard Practices for Producing Films of Uniform Thickness of Paint, Varnish, and Related Products on Test Panels
- ASTM D870 Standard Practice for Testing Water Resistance of Coatings Using Water Immersion
- ASTM G1 Standard Practice for Preparing, Cleaning, and Evaluating Corrosion Test Specimens
- ASTM G113 Standard Terminology Relating to Natural and Artificial Weathering Tests of Nonmetallic Materials
- ASTM G15 Standard Terminology Relating to Corrosion and Corrosion Testing
- ASTM G16 Standard Guide for Applying Statistics to Analysis of Corrosion Data
- JIS Z 2371
- SAE J1563 Guidelines for Laboratory Cyclic Corrosion Test Procedures for Painted Automotive Parts
- SAE J2334 Laboratory Cyclic Corrosion Test
ASTM D6899-03 history
- 2003 ASTM D6899-03 Standard Guide for Laboratory Cyclic Corrosion Testing of Automotive Painted Steel
