

专家解读视频
This document specifies procedures for measuring and reporting the noise emission of information technology and telecommunications equipment.
EN ISO 7779 : 2010 - Identical
EN ISO 7779 : 2018 - Identical
ISO 7779:2018 - Identical
ISO 7779:2018 - Identical
EN ISO 7779 : 2010 - Identical
EN ISO 7779 : 2018 - Identical