BS EN 50332-2:2013
声音系统设备: 与个人音乐播放器相关的头戴受话器及耳机. 最大声压水平测量方法学. 单独使用一个或同时使用两个, 或者用作一个包装设备但是带有两个标准连接器且其之间允许组合不同制造商或者不同设计类型的零部件时的头戴式受话器设置的匹配
Sound system equipment: Headphones and earphones associated with personal music players. Maximum sound pressure level measurement methodology. Matching of sets with headphones if either or both are offered separately, or are offered as one package equipme