음향 시스템 기기－제7부：헤드폰과 이어폰
音响设备第7部分:耳机

2011-12-30

음향 시스템 기기－제7부：헤드폰과 이어폰
音响系统设备第7部分:耳机和入耳式耳机

2011-12-30

음향 시스템 기기 —제7부: 헤드폰과 이어폰
音响系统设备.第7部分:耳机和入耳式耳机

2022-06-20

SOUND SYSTEM EQUIPMENT. PART 7: HEADPHONES AND EARPHONES.
音响系统设备 第7部分:耳机和耳机

1997-08-22

Sound system equipment - Part 7: Headphones and earphones
音响系统设备.第7部分:耳机和入耳式耳机

2020-09-15

Sound system equipment - Part 7: Headphones and earphones
声音系统设备 - 第7部分:耳机和耳机

2010-01-21

For Audiovisual Systems - Sound System Equipment - Part 7: Headphones and Earphones
视听系统用音响设备第7部分:耳机和耳机

1997-01-01

Amendment 1 - Sound system equipment - Part 7: Headphones and earphones
修改件1.音响系统设备.第7部分:耳机和耳机

2020-09-15

声系统设备 第7部分：头戴耳机和耳机测量方法
Sound system equipment—Part 7：Methods of measurement on headphones and earphones

2013-12-31

Draft Document - Sound system equipment - Part 4: Microphones (IEC 100/1456/CD:2008)
文件草案.文件草案.音响系统设备.第4部分:麦克风（IEC 100/1456/CD:2008）

2009-04-01

Draft Document - Pressure equipment - Part 7: Safety systems for unfired pressure equipment; German and English version prEN 764-7:2018
文件草案-压力设备-第7部分:非燃烧压力设备的安全系统；德语和英语版本prEN 764-7:2018

2018-05-01

Draft Document - Alarm systems - Alarm transmission systems and equipment - Part 1-7: Requirements for common protocol for alarm transmission using packet switched network; German version prEN 50136-1-7:2010
文件草案——报警系统——报警传输系统和设备——第1-7部分:使用分组交换网络的报警传输通用协议的要求；德文版prEN 50136-1-7:2010

2010-05-01

Draft Document - Consumer audio/video equipment - Digital interface - Part 7: Transmission of Rec. ITU-R BO.1294 system B (IEC 100/414/CDV:2001); German version prEN 61883-7:2001
文件草案.消费者音频/视频设备.数字接口.第7部分:记录ITU-R BO的传输 1294系统B（IEC 100/414/CDV:2001）；德文版prEN 61883-7:2001

2001-12-01

Draft Document - Energy performance of buildings - Controls for heating systems - Part 1: Control equipment for hot water heating systems - Modules M3-5, 6, 7, 8; German and English version prEN 12098-1:2021
文件草案——建筑物的能源性能——供暖系统的控制——第1部分:热水供暖系统的控制设备——模块M3-5、6、7、8；德语和英语版本prEN 12098-1:2021

2021-09-01

Draft Document - Electrical safety in low voltage distribution systems up to 1000 V a.c. and 1500 V d.c. - Equipment for testing, measuring or monitoring of protective measures - Part 7: Phase sequence (IEC 85/256/CD:2004)
文件草稿交流1000V和直流1500V以下低压配电系统的电气安全保护措施的试验、测量或监测设备第7部分:相序（IEC 85/256/CD:2004）

2005-04-01

Draft Document - Electrical safety in low voltage distribution systems up to 1 000 V AC and 1 500 V DC - Equipment for testing, measuring or monitoring of protective measures - Part 7: Phase sequence (IEC 85/769/CD:2021); Text in German and English
文件草案.交流1000V和直流1500V以下低压配电系统的电气安全.保护措施的试验、测量或监测设备.第7部分:相序（IEC 85/769/CD:2021）；德语和英语文本

2022-04-01

Draft Document - Communication networks and systems in substations - Part 7-3: Basic communication structure for substations and feeder equipment - Common data classes - Amendment 1: Clarifications and Corrections, and Extensions for Power Quality and Representation of Historical and Statistical Information (IEC 57/779/CD:2005), text in English
文件草案.变电站通信网络和系统.第7-3部分:变电站和馈线设备的基本通信结构.通用数据类.修改件1:电能质量的澄清和修正及扩展.历史和统计信息的表示

2006-09-01