Railway applications - Infrastructure - Noise barriers and related devices acting on airborne sound propagation - Test method for determining the acoustic performance - Part 3-1: Normalized railway noise spectrum and single number ratings for diffuse sound field applications
Edition 2023-10

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

Distribution automation using distribution line carrier systems. Lower layer profiles. Spread spectrum adaptive wideband (SS-AW) profile
Edition 2002-05-27

Electromagnetic compatibility and Radio spectrum Matters (ERM) - Short Range Devices - Road Transport and Traffic Telematics (RTTT) - Radar equipment operating in the 76 GHz to 77 GHz range - Part 1 : technical characteristics and test methods for radar equipment operating in the 76 GHz to 77 GHz range (V1.3.2).

Standard Practice for Developing Simplified Fatigue Load Spectra
Edition 2021

Landing Gear Fatigue Tests with Equivalent Damage Spectra
Edition 2017-01-12

Recommended Reference Solar Spectra for Industrial Applications
Edition 2020

Road traffic noise reducing devices - Test method for determining the acoustic performance - Part 3: Normalized traffic noise spectrum
Edition 2023-09-15

Optical amplifiers - Test methods - Part 1-2 : power and gain parameters - Electrical spectrum analyzer method
Edition 2006-04-01

Optical amplifiers - Test methods. Part 5-2: Reflectance parameters - Electrical spectrum analyser method
Edition 2004-05