IEC 60721-2-6-1990 Classification des conditions d?environnement. Partie 2: Conditions d?environnement présentes dans la nature - Vibrations et chocs sismiques (Edition 1.0)
Classification of Environmental Conditions Part 2: Environmental Conditions Appearing in Nature - Earthquake Vibration and Shock (Edition 1.0)
Classification des conditions d?environnement. Partie 2: Conditions d?environnement présentes dans la nature - Vibrations et chocs sismiques (Edition 1.0) 是非强制性国家标准,您可以免费下载前三页
Scope and objectThis part of IEC 721 deals with environmental conditions appearing in nature@ and in particular related t o earthquake vibration and shock.Its object is to define some fundamental properties and quantities for characterization of earthquakes as background material for the severities to which products are liable to be exposed during storage and use. Accelerations given are for ground surface conditions only. Conditions related to structures are referred to but restricted to general case descriptions.