Railway applications - Infrastructure - Noise barriers and related devices acting on airborne sound propagation - Test method for determining the acoustic performance - Part 3-2: Normalized railway noise spectrum and single number ratings for direct sound field applications
Edition 2023-10

Information technology - Data centre facilities and infrastructures - Part 4-2: Power Usage Effectiveness
Edition 2017-04

Information technology - Data centre facilities and infrastructures - Part 4-2: Power Usage Effectiveness
Edition 2019-03

Magnetic materials - Part 15: Methods for the determination of the relative magnetic permeability of feebly magnetic materials
Edition 2012-11

Magnetic materials - Part 15: Methods for the determination of the relative magnetic permeability of feebly magnetic materials
Edition 2018-03

Electric and optical fibre cables - Test methods for non-metallic materials - Part 603: Physical tests - Measurement of total acid number of filling compounds
Edition 2012-06

Methods of measurement for equipment used in digital microwave radio transmission systems. Part 3: Measurements on satellite earth stations. Section 7: Figure-of-merit of receiving system
Edition 1995

Optical amplifiers - Test methods - Part 3: Noise figure parameters
Edition 2008-10

Optical amplifiers - Test methods. Part 3-1: Noise figure parameters - Optical spectrum analyzer method
Edition 2003-11

Optical amplifier test methods - Part 3-2: Noise figure parameters - Electrical spectrum analyzer method
Edition 2008-10