Acoustic monitoring systems for loose parts detection – Characteristics, design criteria and operational procedures
standard by International Electrotechnical Commission, 10/25/1990

Expression of performance of electrochemical analyzers – Part 4: Dissolved oxygen in water measured by membrane covered amperometric sensors
standard by International Electrotechnical Commission, 12/18/1992

Medical electrical equipment – Part 2-51: Particular requirements for safety, including essential performance, of recording and analysing single channel and multichannel electrocardiographs
standard by International Electrotechnical Commission, 12/16/2005

Railway applications – Electric equipment for rolling stock – Rules for power resistors of open construction
standard by International Electrotechnical Commission, 03/15/2001

OPC unified architecture – Part 3: Address Space Model
standard by International Electrotechnical Commission, 07/08/2020

Electroacoustics – Measurement microphones – Part 2: Primary method for pressure calibration of laboratory standard microphones by the reciprocity technique
standard by International Electrotechnical Commission, 02/20/2009

GRAFCET specification language for sequential function charts
standard by International Electrotechnical Commission, 02/27/2013

Optical fibre cables – Part 5-20: Family specification – Outdoor microduct fibre units, microducts and protected microducts for installation by blowing
standard by International Electrotechnical Commission, 02/14/2014

Thermistors – Directly heated positive temperature coefficient – Part 1: Generic specification
standard by International Electrotechnical Commission, 04/10/2006

Stabilized power supplies, a.c. output
standard by International Electrotechnical Commission, 01/01/1980