This standard specifies the relationship and conversion guidelines between the classification of environmental conditions and environmental testing, focusing on the application of ground vehicles. It provides the classification of mechanical conditions and climate conditions, and aims to provide specification makers and engineers with guidance on the conversion of environmental conditions to environmental testing methods to ensure Reliability and adaptability of ground vehicles in a variety of environments. The standard includes exhaustive tables and guidelines to help effectively relate the classification of environmental conditions to actual testing requirements, suitable for the development and evaluation of environmental testing standards for ground vehicles.