Browse Standards

1686+ standards in database

1686 result(s) found

GB/T 4959-2011 Active

厅堂扩声特性测量方法

Methods of measurement for the characteristics of sound reinforcement in auditoria

ICS: 33.160.99
2012-02-01
GB/T 12060.9-2011 Active

声系统设备 第9部分:人工混响、时间延迟和移频装置测量方法

Sound system equipment - Part 9: Methods of measurement for artificial reverberation, time delay and frequency shift equipment

ICS: 33.160.99
2012-05-01
GB/T 9771.7-2012 Abolished

通信用单模光纤 第7部分:接入网用弯曲损耗不敏感单模光纤特性

Single-mode optical fibres for telecommunication - Part 7: Characteristics of a bending loss insensitive single-mode optical fibre for the access network

ICS: 33.180.10
2012-10-01
GB/T 28518-2012 Active

煤矿用阻燃通信光缆

Flame resistant optical fibre cables for communication for mine

ICS: 33.180.10
2012-10-01
GB/T 28516-2012 Active

反垃圾电子邮件网关技术要求

Technical requirement for anti-spam Email gateway

ICS: 33.040.40
2012-10-01
GB/T 28511.2-2012 Abolished

平面光波导集成光路器件 第2部分:基于阵列波导光栅(AWG)技术的密集波分复用(DWDM)滤波器

Integrated optical path devices based on planar lightwave circuit - Part 2 :DWDM filter based on AWG technology

ICS: 33.180.10
2012-10-01
GB/T 28511.1-2012 Abolished

平面光波导集成光路器件 第1部分:基于平面光波导(PLC)的光功率分路器

Integrated optical path devices based on planar lightwave circuit - Part 1:Optical power splitter based on PLC technology

ICS: 33.180.10
2012-10-01
GB/T 28509-2012 Active

绝缘外径在1mm以下的极细同轴电缆及组件

Ultrafine coaxial cables with insulation diameter below 1mm and cable assemblies

ICS: 33.040.50
2012-10-01
GB/T 28504.1-2012 Active

掺稀土光纤 第1部分:双包层掺镱光纤特性

Rare earth doped optical fibre - Part 1: Characteristics of double-cladding ytterbium-doped optical fibre

ICS: 33.180.10
2012-10-01
GB/T 28499.1-2012 Active

基于IP网络的视讯会议终端设备技术要求 第1部分:基于ITU-T H.323协议的终端

Technical requirement for IP video terminal equipment - Part 1: terminal based on ITU-T H.323

ICS: 33.040.40
2012-10-01
GB/T 28436-2012 Active

地面数字电视广播激励器技术要求和测量方法

Technical requirements and measurement methods of digital terrestrial television broadcasting exciter

ICS: 33.160
2012-10-01
GB/T 28435-2012 Active

地面数字电视广播发射机技术要求和测量方法

Technical specifications and methods of measurement for digital terrestrial television broadcasting transmitters

ICS: 33.160
2012-10-01
GB/T 28434-2012 Active

地面数字电视广播单频网适配器技术要求和测量方法

Technical requirements and measurement methods of digital terrestrial television broadcasting single frequency network adapter

ICS: 33.160
2012-10-01
GB/T 21642.4-2012 Active

基于IP网络的视讯会议系统设备技术要求 第4部分:网守(GK)

Technical requirements for IP video conference system devices - Part 4: Gatekeeper

ICS: 33.040.40
2012-10-01
GB/T 21642.3-2012 Active

基于IP网络的视讯会议系统设备技术要求 第3部分:多点控制单元(MCU)

Technical requirements for IP video conference system devices - Part 3: multipoint control unit

ICS: 33.040.40
2012-10-01
GB/T 7424.5-2012 Active

光缆 第5部分:分规范 用于气吹安装的微型光缆和光纤单元

Optical fibre cables - Part 5: Sectional specification - Micro-duct optical fibre cables and fibre units for installation by blowing

ICS: 33.180.30
2012-10-01
GB/T 28501-2012 Active

IP电话路由协议(TRIP)技术要求

Technical requirements of telephony routing over IP ( TRIP )

ICS: 33.040.40
2012-10-01
GB/T 28519-2012 Active

通信产品能耗测试方法通则

General principles of energy consumption test methods for telecommunication equipment

ICS: 33.020
2012-10-01
GB/T 17147-2012 Active

声音广播中音频噪声电平的测量

Measurement of audio-frequency noise voltage level in sound broadcasting

ICS: 33.160.01
2012-10-01
GB/T 28515.1-2012 Active

自动交换光网络(ASON)测试方法 第1部分:基于SDH的ASON

Test specifications for automatically switched optical network(ASON)- Part 1:Test specifications for SDH-based ASON

ICS: 33.040.01
2012-10-01
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