Classification of environmental conditions; part 3: classification of groups of environmental parameters and their severities; portable and non-stationary use; amendment 2

This document serves as an amendment to a foundational classification system regarding environmental conditions for equipment. It specifically addresses the categorization of environmental parameter groups and their severity levels, with a dedicated focus on products designed for portability and those not intended for permanent installation. Building upon earlier sections of the referenced framework, this revision provides updated guidelines to account for the unique stressors encountered by mobile or temporary setups during operation, transport, and storage. The content delineates specific climatic, mechanical, and other environmental factors that such devices may experience, establishing a structured approach to define their operational limits. By refining the severity classes, it aids manufacturers and users in selecting appropriate testing protocols and ensuring product reliability under variable field conditions. The text outlines the necessary parameters for evaluating performance without mandating specific design solutions, allowing flexibility for different application contexts while maintaining consistency in how environmental challenges are assessed across the industry.