Half Price Standard Code

Amendment 1 – Photovoltaic systems – Design qualification of solar trackers
Amendment by International Electrotechnical Commission, 07/28/2017

Multimedia quality – Method of assessment of synchronization of audio and video
standard by International Electrotechnical Commission, 09/08/2008

Universal serial bus interfaces for data and power – Part 1-5: Common components – USB Audio 3.0 device class definition
standard by International Electrotechnical Commission, 09/19/2019

Railway applications – DC surge arresters and voltage limiting devices – Part 2: Voltage limiting devices
standard by International Electrotechnical Commission, 06/18/2019

Field device tool (FDT) interface specification – Part 303-1: Communication profile integration – IEC 61784 CP 3/1 and CP 3/2
standard by International Electrotechnical Commission, 06/30/2009

Digital load side transmission lighting control (DLT) – Part 1: Basic requirements
standard by International Electrotechnical Commission, 05/27/2015

Electric welding equipment – Assessment of restrictions related to human exposure to electromagnetic fields (0 Hz to 300 GHz) – Part 1: Product family standard
standard by International Electrotechnical Commission, 03/30/2016

Multimedia systems and equipment – Multimedia e-publishing and e-books – Generic format for e-publishing
standard by International Electrotechnical Commission, 02/25/2009

Alarm systems – Intrusion and hold-up systems – Part 5-3: Interconnections – Requirements for equipment using radio frequency techniques
standard by International Electrotechnical Commission, 10/07/2010

Amendment 1 – Nuclear power plants – Instrumentation and control systems important to safety – Design and qualification of isolation devices
Amendment by International Electrotechnical Commission, 05/17/2018