ASTM D6899-03 is a standard guide that provides laboratory cyclic corrosion test procedures for automotive painted steel. This test is used to evaluate the corrosion resistance of automotive painted steel products, including body panels, wheels, and other external components.

This standard Outlines procedures for testing the corrosion resistance of painted steel samples in a cyclic manner. The test involves exposing samples to a range of different environmental conditions, including salt spray, dry heat, at kahalumigmigan. The samples were exposed to these conditions for a specific period of time, and the entire test lasted up to 60 days in total.

ASTM D6899-2003 Cyclic Corrosion Test for Automotive Painted Steel Plates

The test is designed to simulate the harsh environmental conditions that a painted steel product may encounter during its life cycle. The cyclic nature of the test helps to accelerate the corrosion process, making it possible to assess the corrosion resistance of painted steel products in a relatively short time.

The standard also provides guidance on the preparation of test samples, the equipment required to perform the tests, and the evaluation of test results. It also includes information on the interpretation of test results and the reporting of test data.

Overall, ASTM D6899-03 is a valuable tool for evaluating the corrosion resistance of automotive coated steel products that can help manufacturers develop products that meet the demanding requirements of the automotive industry.