ISO 16335-2013 is an instructive technical report designed to assist in the selection of appropriate accelerated corrosion test (ACT) methods for evaluating the corrosion performance of metals and alloys. This document provides an overview of various international standard test methods, provides a framework and guidance for the selection of test methods, and covers the classification, Application and equipment requirements for accelerated atmospheric corrosion testing. The main objective is to improve the practical relevance of laboratory test results through quantitative methods to assist in effective corrosion certification during the product design phase.