环境条件分类 第3-1部分：环境参数分组及其严重性分类 贮存（3.0版）

[中文适用范围]： IEC 60721 的这一部分对产品及其包装@（如果有）在储存时所承受的环境参数组及其严重程度进行了分类。本文件中规定的环境条件仅限于那些能够直接影响产品或其最终性能的环境条件。仅考虑环境条件本身。没有给出这些条件对产品的影响的特殊描述。不包括与火灾或爆炸直接相关的环境条件。 IEC 60721-3 系列的其他子部分给出了固定使用条件、便携式和非固定使用条件、车辆和船舶使用条件以及运输条件。本文件的目的是对产品在储存期间可能暴露的环境参数及其严重程度进行分类。 IEC 60721-3-2 阐述了存储和运输过程中的转移和处理。 [外文原描述]： IEC 60721-3-1:2018 classifies the groups of environmental parameters and their severities to which products together with their packaging, if any, are subjected when stored. The environmental conditions specified in this document are limited to those which can directly affect the products or their ultimate performance. Only environmental conditions as such are considered. No special description of the effects of these conditions on the products is given. Environmental conditions directly related to fire or explosions are not included. Conditions of stationary use, portable and non-stationary use, use in vehicles and ships, and conditions of transportation are given in other subparts of the IEC 60721-3 series. This third edition cancels and replaces the second edition, published in 1997, and constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: a. Clause 3: reworded and simplified. b. Clause 4: reworded and simplified. c. Clause 5: Annex C has been incorporated in Clause 5. d. 5.2: all existing climate classes have been replaced by completely new classes. The new classes are divided into 3 groups. The reason for the new classes is the latest revision of IEC 60721-2-1 which incorporated new climate types. e. 5.3: new classes for solar radiation and snow load. f. 5.6: all existing classes for mechanically active substances have been replaced by completely new classes. g. 5.7: all existing classes for mechanical conditions have been replaced by completely new classes. h. Table 1: new climatic classes with new severities. i. Table 2: new classes for solar radiation and snow load. j. Table 5 new mechanically active substances classes. k. Table 6: new mechanical conditions classes. The content of the corrigendum 1 (2024-10) has been included in this copy.